hypotenuse
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C1 noun /haɪˈpɒtənjuːs/

hypotenuse

hipotenusa
Meaning
the longest side of a right-angled triangle, opposite the right angle.
Example
In a right triangle, the hypotenuse is always longer than the other two sides.
En un triángulo rectángulo, la hipotenusa siempre es más larga que los otros dos lados.
B2 noun /heɪst/

Haste

prisa; urgencia
Meaning
swiftness of motion; urgent need of quick action; excessive speed or urgency
Example
In his haste to catch the train, he forgot to take his wallet from the table.
En su prisa por coger el tren, olvidó tomar su billetera de la mesa.
A2 pronoun /hɜːrˈsɛlf/

herself

ella misma
Meaning
used to refer to a female person as the object of a verb or preposition when she is the subject
Example
She prepared the meal all by herself.
Ella preparó la comida por sí misma.
B1 noun /ˈhel.mət/

Helmet

casco
Meaning
a hard or padded protective hat worn by motorcyclists, construction workers, or soldiers
Example
The cyclist always wore a bright yellow helmet for safety and visibility while riding.
El ciclista siempre usaba un casco amarillo brillante para seguridad y visibilidad mientras montaba.
B1 noun /ˈɒnɪsti/

honesty

honestidad
Meaning
the quality of being truthful and sincere
Example
Honesty is the best policy in all situations.
La honestidad es la mejor política en todas las situaciones.
C1 noun /ˈhɛrəsi/

heresy

herejía
Meaning
belief or opinion that goes against established religious doctrine or accepted beliefs.
Example
In medieval times, heresy was often punished severely.
En la Edad Media, la herejía a menudo se castigaba severamente.
C2 adjective /həˈmɑː.lə.ɡəs/

homologous

homólogo (estructura)
Meaning
Having the same relation, relative position, or structure, especially due to evolutionary origin.
Example
The wings of bats and the arms of humans are homologous structures.
Las alas de los murciélagos y los brazos de los humanos son estructuras homólogas.
B2 noun /hoʊm ˈdɪstrɪkt/

home district

distrito natal
Meaning
the district where a person was born or originally comes from
Example
He returned to his home district after many years abroad.
Regresó a su distrito natal después de muchos años en el extranjero.
B2 noun /ˈhaɪdrədʒən/

hydrogen

hidrógeno
Meaning
a colorless, odorless, highly flammable gas that is the lightest and most abundant chemical element in the universe
Example
Hydrogen is used as a clean fuel in many energy systems.
El hidrógeno se utiliza como un combustible limpio en muchos sistemas de energía.
B2 noun /hɜːb/ (US) /hɜːb/ or /ɜːb/

herb

hierba
Meaning
a plant used for flavoring food, medicine, or perfume
Example
Basil is a popular herb used in Italian cuisine.
La albahaca es una hierba popular en la cocina italiana.
C1 adverb /ˈheɪs.tɪ.li/

Hastily

apresuradamente
Meaning
in a hurried or rushed manner; quickly and carelessly
Example
She hastily packed her bags before leaving for the airport.
Ella empacó apresuradamente sus maletas antes de irse al aeropuerto.
B2 noun /haɪv/

Hive

colmena; lugar lleno de actividad
Meaning
a structure in which bees live and produce honey; a place full of busy activity
Example
The garden was buzzing with activity as bees flew back and forth from their hive.
El jardín estaba zumbando con actividad mientras las abejas volaban de un lado a otro desde su colmena.
B1 adjective /ˈhɪd.ən/

Hidden

oculto; secreto; invisible
Meaning
concealed from view; kept secret; not visible or apparent
Example
There was a hidden camera in the room.
Había una cámara oculta en la habitación.
C1 noun /ˈhaɪ.nəs/

Highness

Grandeza; título real
Meaning
a title given to a person of royal rank; the quality or state of being high or elevated
Example
Your Highness, the royal carriage is ready to take you to the state banquet this evening.
Su Grandeza, el carruaje real está listo para llevarlo al banquete estatal esta noche.
C2 noun /ˌhjuː.mɪ.fɪˈkeɪ.ʃən/

humification

humificación
Meaning
The process of organic matter decomposition to form humus in soil.
Example
Humification enhances soil structure and fertility.
La humificación mejora la estructura y fertilidad del suelo.
B2 adverb /hɛns/

hence

por lo tanto
Meaning
for this reason; as a result
Example
She was the best candidate, hence she was chosen for the job.
Ella era la mejor candidata, por lo tanto, fue elegida para el trabajo.
C2 noun /ˈhen.ə/

Henna

henna
Meaning
a reddish-brown dye made from the powdered leaves of a tropical shrub, used to color hair and decorate skin
Example
The bride's hands were beautifully decorated with intricate henna patterns for her wedding ceremony.
Las manos de la novia estaban bellamente decoradas con intrincados patrones de henna para su ceremonia de boda.
C1 noun /ˈhɑː.stɪdʒ/

Hostage

rehén
Meaning
a person seized or held as security for the fulfillment of a condition; captive
Example
The police negotiated carefully to secure the release of all hostages unharmed.
La policía negoció cuidadosamente para asegurar la liberación de todos los rehenes sin daño alguno.
C1 adjective /ˈhæpləs/

hapless

desdichado, desafortunado
Meaning
unfortunate, unlucky, deserving pity
Example
The hapless traveler lost his passport on the very first day.
El desdichado viajero perdió su pasaporte en el primer día.
A1 adjective /hɒt/

Hot

caliente; tibio; ardiente;
Meaning
having high temperature; warm; heated;
Example
The coffee is too hot to drink.
El café está demasiado caliente para beber.
B2 noun /həˈraɪ.zən/

horizon

horizonte
Meaning
the line where the earth seems to meet the sky; the limit of one's knowledge, experience, or interest
Example
The sun disappeared below the horizon.
El sol desapareció debajo del horizonte.
B2 adjective /hɪˈroʊɪk/

heroic

heroico
Meaning
showing great bravery or courage; relating to a hero or heroes
Example
The firefighter made a heroic effort to save the child.
El bombero hizo un esfuerzo heroico para salvar al niño.
C1 noun /ˈheəˌkʌtər/

haircutter

peluquero
Meaning
a person whose job is to cut and style hair; barber or hairdresser
Example
The haircutter gave me a neat and stylish haircut.
El peluquero me hizo un buen corte de pelo.
B2 noun ˈhæb.ɪ.tæts

habitats

hábitat
Meaning
The natural home or environment of an animal, plant, or other organism.
Example
Scientists envision habitats on the Moon.
Los científicos imaginan hábitats en la luna.
B1 adjective /ˈhoʊmləs/

homeless

sin hogar
Meaning
Without a home, and therefore typically living on the streets.
Example
The organization helps homeless people find shelter.
La organización ayuda a las personas sin hogar a encontrar refugio.
C1 noun ˈhɪn.drəns

hindrance

obstáculo
Meaning
Something that creates difficulties or delays in progress.
Example
Lack of funds was a major hindrance to the project.
La falta de fondos fue un obstáculo importante para el proyecto.
B2 adjective /hɪˈlɛəriəs/

hilarious

extremadamente divertido
Meaning
Extremely funny or amusing.
Example
The comedian told a hilarious story that had everyone laughing.
El comediante contó una historia extremadamente divertida que hizo reír a todos.
B1 noun /ˈhɑːrdˌwɛr/

hardware

hardware
Meaning
the physical parts of a computer or electronic system, such as the monitor, keyboard, and processor
Example
The company upgraded its computer hardware to improve performance.
La empresa actualizó su hardware de computadora para mejorar el rendimiento.
B2 noun /haɪˈiː.nə/

Hyena

hiena
Meaning
a wild animal of Africa and Asia that looks like a dog and makes a sound like laughter
Example
The hyena laughed in the darkness of the night.
La hiena rió en la oscuridad de la noche.
A1 verb /hoʊld/

hold

sujetar
Meaning
to grasp or carry something; to maintain a position
Example
Please hold my hand.
por favor, sujeta mi mano.
C2 verb /ˈhɛnˌpɛk/

henpeck

ser constantemente criticado o dominado por la esposa
Meaning
To continually criticize, nag, or dominate (especially a husband).
Example
He felt henpecked by his overly controlling wife.
Él se sintió controlado por su esposa excesivamente dominante.
C2 adjective /hɪk/

Hick

campesino; paleto
Meaning
unsophisticated person from a rural area; country bumpkin
Example
He had a hick accent from growing up in a small town.
Él tenía un acento de campesino por haber crecido en un pueblo pequeño.
C2 noun /haɪˈdrɒmɪtər/

hydrometer

hidrómetro
Meaning
An instrument used to measure the density or specific gravity of liquids.
Example
The brewer used a hydrometer to test the sugar content of the solution.
El cervecero utilizó un hidrómetro para medir el contenido de azúcar de la solución.
C2 noun phrase /ˌhjuː ən ˈkraɪ/

hue and cry

gritos de protesta
Meaning
A loud public outcry or protest, often demanding action.
Example
There was a hue and cry over the new policy changes.
Hubo un gran grito de protesta por los nuevos cambios de política.
B1 noun /ˈhjuː.mər/

humor

humor
Meaning
The quality of being amusing or entertaining.
Example
His sense of humor always lightens the mood.
Su sentido del humor siempre aligera el ánimo.
B2 verb /ˈhɑːrnɪs/

harness

controlar y utilizar
Meaning
To control and make use of natural resources, especially energy.
Example
Scientists are working to harness solar power effectively.
Los científicos están trabajando para aprovechar la energía solar de manera eficaz.
C2 adjective /ˌhaɪpəˈdɜːrmɪk/

hypodermic

hipodérmico
Meaning
relating to the region immediately beneath the skin; also refers to a type of needle or syringe used to inject drugs beneath the skin.
Example
The doctor used a hypodermic needle to administer the vaccine.
El médico usó una aguja hipodérmica para administrar la vacuna.
C2 noun /ˈhɑːtʃ.pɑːtʃ/

Hotchpotch

mezcla confusa; un montón de cosas mezcladas
Meaning
a confused mixture; a jumbled assortment of things
Example
The room was a hotchpotch of old furniture, books, and random decorations.
La habitación era una mezcla confusa de muebles viejos, libros y decoraciones aleatorias.
B2 noun /ˈhɑːr.bər/

Harbour

puerto
Meaning
a place on the coast where vessels may find shelter; a place of safety or refuge
Example
The fishing boats returned safely to the harbour before the storm hit the coastline.
Los botes de pesca regresaron de manera segura al puerto antes de que la tormenta golpeara la costa.
B2 adjective haɪˈdʒiː.nɪk

hygienic

higiénico
Meaning
Conducive to maintaining health and preventing disease, especially by being clean.
Example
Maintaining hygienic conditions in hospitals is crucial.
Mantener condiciones higienicas en los hospitales es crucial.
C2 noun /hɪˈdʒɛməni/ or /ˈhɛdʒəmoʊni/

hegemony

hegemonía
Meaning
leadership or dominance, especially by one state or group over others
Example
The empire maintained its hegemony over neighboring states.
El imperio mantuvo su hegemonía sobre los estados vecinos.
B1 noun /ˈhɛlθˌkɛər/

health-care

felicidad
Meaning
the organized provision of medical services to maintain or improve health
Example
Access to quality health-care is essential for every citizen.
Ella no pudo ocultar su felicidad cuando recibió el premio.
C1 noun /ˈhʌbʌb/

hubbub

alboroto
Meaning
a loud noise caused by a crowd of people talking or shouting
Example
There was a hubbub in the market as the sale began.
Hubo un alboroto en el mercado cuando comenzó la venta.
A1 pronoun /hɪz/

his

su
Meaning
belonging to or associated with a male person previously mentioned
Example
This is his book on the table.
Este es su libro en la mesa.
A2 adjective /hjuːdʒ/

huge

enorme
Meaning
extremely large in size or amount
Example
The stadium was filled with a huge crowd.
El estadio estaba lleno de una enorme multitud.
C2 verb /ˈhɛktər/

hector

hablar con amenazas
Meaning
To talk to someone in a bullying or intimidating way.
Example
The manager hectored the staff into working overtime.
El gerente amenazó al personal para que trabajara horas extras.
C1 noun ˈhaɪ.drə.dʒən ˈpaʊ.əd bʌsɪz

hydrogen-powered buses

autobuses impulsados por hidrógeno
Meaning
Buses powered by hydrogen fuel cells that produce only water vapor as emission.
Example
Hydrogen-powered buses reduce air pollution.
Los autobuses impulsados por hidrógeno reducen la contaminación del aire.
B2 noun /ˌhez.ɪˈteɪ.ʃən/

Hesitation

vacilación; duda
Meaning
the action of pausing or delaying; uncertainty or unwillingness to act
Example
After a moment of hesitation, she decided to accept the challenging job offer from the company.
Después de un momento de vacilación, decidió aceptar la oferta de trabajo desafiante de la empresa.
B1 adjective /ˈhɑːrmfəl/

Harmful

perjudicial
Meaning
causing or likely to cause harm; damaging
Example
Smoking is harmful to your health.
Fumar es perjudicial para tu salud.
C2 adjective/noun /haɪˈbɜːrniən/

hibernian

hiberniano
Meaning
Relating to Ireland or the Irish.
Example
He enjoyed reading about Hibernian culture and history.
Disfrutó leer sobre la cultura y la historia hiberniana.
C1 noun /ˈhɛksəˌɡɒn/

hexagon

hexágono
Meaning
A six-sided polygon.
Example
A honeycomb cell is shaped like a hexagon.
Una célula de panal tiene forma de hexágono.
B2 adjective /ˈhɑːrtˌbreɪkɪŋ/

Heartbreaking

desgarrador; devastador; conmovedor
Meaning
causing overwhelming distress; very sad or disappointing
Example
The documentary showed heartbreaking scenes of children in poverty.
El documental mostró escenas desgarradoras de niños en la pobreza.
C1 noun /hʌl/

hull

casco del barco / cáscara de semilla
Meaning
The outer covering of a seed or fruit; also the main body of a ship.
Example
The sailors inspected the ship’s hull for any damage.
Los marineros inspeccionaron el casco del barco para detectar daños.
C2 noun /hæɡ/

Hag

bruja
Meaning
an ugly old woman, especially a vicious or malicious one; a witch
Example
In the fairy tale, the wicked hag lived alone in a cottage deep in the forest.
En el cuento de hadas, la malvada bruja vivía sola en una cabaña en lo profundo del bosque.
B2 noun /hɔːk/

Hawk

halcón
Meaning
a bird of prey with broad wings and strong talons used for hunting
Example
The hawk soared high above the field hunting for prey.
El halcón voló alto sobre el campo buscando su presa.
B2 adjective; past participle /ˈɒnəd/

honoured

honrado
Meaning
treated with respect or distinction; feeling proud and privileged
Example
She felt deeply honoured to receive the award.
Se sintió muy honrada de recibir el premio.
C2 adjective /heɪl/

hale

sano
Meaning
strong and healthy, especially of an elderly person
Example
Despite his age, the man remained hale and active.
A pesar de su edad, el hombre se mantuvo saludable y activo.
B2 noun /heɪl/

Hail

granizo
Meaning
pellets of frozen rain that fall in showers from cumulonimbus clouds; a greeting or acclaim
Example
The sudden hailstorm damaged many cars in the parking lot with large ice pellets.
La súbita tormenta de granizo dañó muchos autos en el estacionamiento con grandes pelotas de hielo.
A2 noun ˈhɪs.tər.i

History

historia
Meaning
The study of past events; a chronological record of events and heritage.
Example
The history of ancient civilizations fascinates scholars.
La historia de las civilizaciones antiguas fascina a los eruditos.
B2 adjective /ˈhjuː.mɪd/

Humid

húmedo; mojado
Meaning
containing moisture; damp; moist;
Example
The humid climate makes it feel hotter than it actually is.
El clima húmedo hace que se sienta más calor del que realmente hace.
C2 noun ˌhiː.məˈfɪl.i.ə

hemophilia

hemofilia
Meaning
A medical condition in which the ability of the blood to clot is severely reduced, causing the sufferer to bleed severely from even a slight injury.
Example
Hemophilia treatment benefits from genetic editing.
El tratamiento de la hemofilia se beneficia de la edición genética.
A2 pronoun /hɪmˈself/

himself

él mismo
Meaning
Used to emphasize that a male person does something by his own effort.
Example
He fixed the car himself.
Él arregló el coche él mismo.
B1 noun /ˈhæm.ər/

Hammer

martillo
Meaning
a tool with a heavy metal head for hitting nails or breaking things
Example
She used a hammer to nail the picture frame to the wall.
Ella usó un martillo para clavar el marco de la foto en la pared.
A2 verb /heɪt/

hate

odiar
Meaning
to feel intense dislike or aversion for someone or something
Example
I hate waiting in long lines.
Odio esperar en largas filas.
A1 noun /hɔːrs/

Horse

caballo
Meaning
a large domesticated mammal used for riding and pulling loads
Example
The horse galloped across the field with great speed.
El caballo galopó a través del campo con gran velocidad.
C2 noun /ˌhæŋ.ər ˈɒn/

hanger-on

parásito
Meaning
a person who spends time with a powerful or famous person to gain benefits.
Example
The celebrity was always surrounded by hangers-on.
La celebridad siempre estaba rodeada de parásitos.
A1 pronoun /hiː/

he

él (masculino)
Meaning
used to refer to a male person or animal already mentioned or easily identified
Example
He is my best friend.
Él es mi mejor amigo.
C1 verb /ˈhæmpər/

hamper

impedir
Meaning
to hinder or impede the movement or progress of
Example
The heavy rain hampered our travel plans.
La fuerte lluvia impidió nuestros planes de viaje.
C2 noun /ˈhɛklər/

heckler

interrumpidor
Meaning
A person who interrupts a speaker with rude or aggressive comments.
Example
The politician remained calm despite the heckler shouting from the crowd.
El político se mantuvo tranquilo a pesar del interrumpidor gritando desde la multitud.
C2 noun /ˌhoʊ.mi.oʊˈsteɪ.sɪs/

homeostasis

equilibrio interno del cuerpo, estabilidad fisiológica mantenida por procesos fisiológicos
Meaning
The tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Example
The human body maintains homeostasis through temperature regulation.
El cuerpo humano mantiene la homeostasis a través de la regulación de la temperatura.
C1 verb /hiːd/

heed

prestar atención
Meaning
to pay attention to; to take notice of
Example
You should heed the teacher's advice.
Debes hacer caso al consejo del maestro.
C2 verb (past tense, past participle), adjective /ˈhæmstrʌŋ/

hamstrung

cojo o debilitado
Meaning
crippled or severely restricted in movement or progress.
Example
The team was hamstrung by lack of resources.
El equipo fue limitado por la falta de recursos.
C1 noun /hɔːrd/

horde

multitud
Meaning
A large group or crowd, especially one that is disorderly or difficult to control.
Example
A horde of fans gathered outside the stadium.
Una multitud de fanáticos se reunió fuera del estadio.
A2 noun /hɔːl/

Hall

salón; pasillo
Meaning
a large room for meetings, concerts, or other events; a corridor in a building
Example
The graduation ceremony was held in the main hall of the university.
La ceremonia de graduación se celebró en el salón principal de la universidad.
C1 adjective /hɪpˈnɒtɪk/

hypnotic

hipnótico
Meaning
Producing sleep or a trance-like state; mesmerizing.
Example
The music had a hypnotic effect on the audience.
La música tuvo un efecto hipnótico en la audiencia.
C2 noun /ˌhaɪdroʊməˈkænɪks/

hydromechanics

hidromecánica
Meaning
The study of the mechanical properties and behavior of fluids in motion and at rest.
Example
Hydromechanics provides the foundation for naval architecture.
La hidromecánica proporciona la base para la arquitectura naval.
C1 noun ˌhaɪ.pɚˈten.ʃən

hypertension

hipertensión
Meaning
Abnormally high blood pressure.
Example
High sodium intake leads to hypertension.
El consumo elevado de sodio lleva a la hipertensión.
B2 noun ˈhæbɪtæt lɒs

Habitat Loss

pérdida de hábitat
Meaning
The destruction or disappearance of natural environments where organisms live.
Example
Habitat loss is one of the biggest threats to butterflies.
La pérdida de hábitat es una de las mayores amenazas para las mariposas.
C2 noun /hɔːɡ plʌm/

Hog plum

ciruela de higo
Meaning
tropical fruit with yellow skin and sour taste
Example
Hog plums are often used to make pickles and chutneys.
Las ciruelas de higo se usan a menudo para hacer encurtidos y salsas.
C1 noun /ˈhɔːr.nət/

Hornet

avispa
Meaning
a large wasp that can sting and is often aggressive
Example
The hornet built its nest under the roof.
La avispa construyó su nido bajo el techo.
B2 adjective /ˈhez.ɪ.tənt/

Hesitant

dudoso; vacilante; renuente
Meaning
uncertain or unwilling to act; showing doubt or reluctance
Example
She was hesitant to accept the job offer.
Ella estaba indecisa para aceptar la oferta de trabajo.
A1 noun, numeral /ˈhʌndrəd/

hundred

cien
Meaning
the number 100
Example
There are a hundred students in the hall.
Hay cien estudiantes en el salón.
C2 noun /ˌhɛtərəʤəˈniːɪti/

heterogeneity

heterogeneidad
Meaning
the quality or state of being diverse in character or content
Example
The cultural heterogeneity of the city makes it vibrant and unique.
La heterogeneidad cultural de la ciudad la hace vibrante y única.
C1 noun /haɪˈpɜːrbəli/

hyperbole

hipérbole
Meaning
Exaggerated statements or claims not meant to be taken literally.
Example
Saying he could run a thousand miles in a day is pure hyperbole.
Decir que podría correr mil millas en un día es pura hipérbole.
C2 noun /ˌhæŋ.ki ˈpæŋ.ki/

Hanky-Panky

fraude; actividad sospechosa; comportamiento poco ético; engaño
Meaning
dishonest or suspicious activity; unethical behavior; trickery or deception
Example
The audit revealed some hanky-panky in the company's financial records.
La auditoría reveló algo de fraude en los registros financieros de la empresa.
B2 noun /er/

Heir

heredero
Meaning
a person legally entitled to the property or rank of another on that person's death
Example
The young prince was the rightful heir to the throne and would become king someday.
El joven príncipe era el heredero legítimo al trono y algún día sería rey.
C2 noun /hɑrˈmoʊniəm/

Harmonium

harmonium
Meaning
a keyboard musical instrument similar to an organ, using air to produce sound
Example
She played devotional songs on the harmonium at the temple.
Ella tocó canciones devocionales en el harmonium del templo.
B1 verb /hiːl/

heal

curar
Meaning
to cure; to become healthy again
Example
Time will heal all wounds.
El tiempo curará todas las heridas.
C1 noun /ˈhæm.lət/

Hamlet

pequeña aldea
Meaning
a small rural settlement, smaller than a village; a small community
Example
The tiny hamlet nestled in the valley had only a dozen houses and one small church.
La pequeña aldea enclavada en el valle tenía solo una docena de casas y una pequeña iglesia.
B2 adjective /ˈhɑːrti/

Hearty

entusiasta y amigable; sustancial y nutritivo
Meaning
enthusiastic and friendly; substantial and nourishing
Example
He gave us a hearty welcome when we arrived at his home.
Nos dio una cálida bienvenida cuando llegamos a su casa.
C2 verb /ˈhæroʊ/

harrow

afligir / rastra
Meaning
to cause distress or torment; also to break up and smooth soil with a farm tool
Example
The tragic news harrowed the entire family.
La noticia trágica afligió a toda la familia.
A1 noun /ˈaʊər/

hour

hora
Meaning
A period of time equal to 60 minutes.
Example
The meeting lasted for two hours.
La reunión duró dos horas.
C2 verb /ˈhæloʊ/

hallow

santificar
Meaning
to honor as holy; to make sacred or greatly respected
Example
The ancient temple was hallowed by centuries of worship.
El antiguo templo fue santificado por siglos de adoración.
C1 noun ˈhɛroʊˌɪzəm

heroism

heroísmo
Meaning
Great bravery; the qualities or attributes of a hero.
Example
The heroism of freedom fighters inspires the nation.
El heroísmo de los luchadores por la libertad inspira a la nación.
B1 noun /ˈhʌŋɡər/

hunger

hambre
Meaning
the feeling of discomfort caused by lack of food
Example
The child cried out of hunger.
El niño lloraba por hambre.
C2 noun /hɜːrˈbɛəriəm/

herbarium

herbario
Meaning
A collection of preserved plant specimens and associated data used for scientific study.
Example
The university maintains a large herbarium for research and education.
La universidad mantiene un gran herbario para la investigación y la educación.
C1 adjective ˌhaɪ.pəˈθet.ɪ.kəl

hypothetical

hipotético, supuesto, teórico
Meaning
Based on or serving as a hypothesis; supposed but not necessarily real or true.
Example
The discussion was based on hypothetical scenarios.
La discusión se basó en escenarios hipotéticos.
C2 noun /ˌhɜːrpəˈtɒlədʒɪst/

herpetologist

herpetólogo
Meaning
A scientist who studies reptiles and amphibians.
Example
The herpetologist discovered a new species of frog in the rainforest.
El herpetólogo descubrió una nueva especie de rana en la selva tropical.
B2 adverb /ˈaʊər.li/

Hourly

cada hora; ocurrido o hecho cada hora; continuamente
Meaning
every hour; happening or done each hour; continuously
Example
The weather report is updated hourly.
El informe del clima se actualiza cada hora.
C2 noun /ˌhaɪpəkəˈnektɪvɪti/

hyperconnectivity

hiperconectividad
Meaning
The state of being extensively connected to other people, places, information, etc., through digital technology.
Example
Hyperconnectivity has changed the dynamics of human interaction.
La hiperconectividad ha cambiado la dinámica de la interacción humana.
C2 noun /ˈhɪlək/

hillock

colina
Meaning
A small hill or mound.
Example
The children climbed up the grassy hillock to watch the sunset.
Los niños subieron a la colina cubierta de hierba para ver la puesta de sol.
C2 adjective /ˈhʌmdrʌm/

humdrum

monótono
Meaning
Lacking excitement or variety; dull and monotonous.
Example
She grew tired of the humdrum routine of office life.
Ella se cansó de la rutina monótona de la vida en la oficina.
C1 adjective /ˈhæb.ɪ.tə.bəl/

Habitable

habitable
Meaning
suitable or good enough to live in
Example
The planet Mars may become habitable in the future.
El planeta Marte puede volverse habitable en el futuro.
B1 noun /hoʊst/

Host

anfitrión; persona que recibe o entretiene invitados; gran número de cosas
Meaning
a person who receives or entertains other people as guests; a large number of things
Example
The gracious host welcomed all the guests with warm smiles and refreshments.
El amable anfitrión dio la bienvenida a todos los invitados con sonrisas cálidas y refrescos.
C1 adjective /ˈhær.oʊ.ɪŋ/

harrowing

aterrador y angustioso
Meaning
extremely distressing or upsetting
Example
It was a harrowing experience to witness the accident.
Fue una experiencia aterradora ser testigo del accidente.
A2 adjective ˈhjuː.mən

human

humano
Meaning
Relating to or characteristic of people or human beings; showing the better qualities of humankind, such as kindness.
Example
Human values shape social systems.
Los valores humanos dan forma a los sistemas sociales.
A2 noun /hoʊl/

Hole

agujero; hoyo;
Meaning
a hollow place in a solid body or surface; an opening through something
Example
The dog dug a deep hole in the backyard to bury its favorite bone.
El perro cavó un agujero profundo en el patio trasero para enterrar su hueso favorito.
C2 adjective /həˈrɛtɪkəl/

heretical

herético
Meaning
Relating to or characterized by departure from accepted beliefs or standards, especially in religion.
Example
The priest condemned the book as heretical.
El sacerdote condenó el libro como herético.
C2 verb /hjuː/

hew

cortar
Meaning
To chop or cut something, especially wood or stone, with a tool.
Example
The workers hewed logs to build the cabin.
Los trabajadores cortaron troncos para construir la cabaña.
B2 noun /ˈɑːnər/

honor

honor
Meaning
high respect; great esteem
Example
He received an award in honor of his achievements.
Recibió un premio en honor a sus logros.
B2 noun /ˈhæs.əl/

Hassle

molestia; inconveniente; problema
Meaning
irritating inconvenience; trouble or difficulty; a situation causing problems
Example
Booking tickets online can save you the hassle of waiting in long queues at the theater.
Reservar boletos en línea puede ahorrarte la molestia de esperar en largas colas en el teatro.
C2 noun /ˌhaɪdroʊdaɪˈnæmɪks/

hydrodynamics

hidrodinámica
Meaning
The branch of science concerned with the motion of fluids, especially liquids, and the forces acting on solid bodies immersed in fluids.
Example
Hydrodynamics is essential in designing efficient ship hulls.
La hidrodinámica es esencial para disenar cascos de barcos eficientes.
C2 noun /ˈhjuːməs/

humus

humus
Meaning
The dark, organic material in soil formed from decayed plants and animals.
Example
The gardener enriched the soil with humus to improve plant growth.
El jardinero enriqueció el suelo con humus para mejorar el crecimiento de las plantas.
C1 adjective /ˌhɔːrtɪˈkʌltʃərəl/

horticultural

relacionado con la horticultura
Meaning
Relating to the art or practice of garden cultivation and management.
Example
She studied horticultural science at the university.
Ella estudió ciencia hortícola en la universidad.
B2 noun, verb /ˈhɑːrbər/

harbor

puerto / albergar
Meaning
noun: a place on the coast where ships may find shelter; verb: to keep (a thought or feeling, often negative) in one's mind
Example
He continued to harbor resentment towards his former boss.
Él continuó albergando resentimiento hacia su antiguo jefe.
C1 adjective /ˌhɪpəˈkrɪtɪkəl/

Hypocritical

hipócrita
Meaning
behaving in a way that contradicts one's stated beliefs or values
Example
It's hypocritical to preach honesty while lying yourself.
Es hipócrita predicar honestidad mientras mientes.
C1 adverb /ˈhed ɑn/

Head-on

de frente
Meaning
directly facing; in direct confrontation or collision
Example
The two cars collided head-on at the intersection.
Los dos autos colisionaron de frente en la intersección.
C2 adjective /ˈhæriːd/

harried

estresado o agobiado
Meaning
feeling strained or stressed due to being overworked or constantly bothered
Example
The harried teacher struggled to calm the noisy classroom.
El maestro estresado luchaba por calmar el ruidoso aula.
C1 adjective /hɜːrˈbɪv.ər.əs/

Herbivorous

herbívoro
Meaning
feeding on plants; plant-eating
Example
Cows are herbivorous animals that graze on grass.
Las vacas son animales herbívoros que pastan en la hierba.
C2 noun /ˌhaɪpəˈkɒndrɪæk/

hypochondriac

hipocondríaco
Meaning
a person who is excessively worried about having a serious illness
Example
She is a hypochondriac who visits the doctor every week.
Ella es una hipocondríaca que visita al médico cada semana.
C2 noun /ˈhɛptəˌɡɒn/

heptagon

heptágono
Meaning
A polygon with seven sides and seven angles.
Example
The math teacher drew a heptagon on the board.
El maestro de matemáticas dibujó un heptágono en la pizarra.