hydromechanics
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C2 noun /ˌhaɪdroʊməˈkænɪks/

hydromechanics

Meaning
The study of the mechanical properties and behavior of fluids in motion and at rest.
Example
Hydromechanics provides the foundation for naval architecture.
B1 adjective /ˈhoʊli/

Holy

Meaning
sacred; dedicated to God or religious purposes; morally and spiritually excellent
Example
The holy shrine attracts thousands of pilgrims every year.
C2 adjective /ˈhaɪdrəs/

hydrous

Meaning
Containing water, especially water of crystallization.
Example
The mineral is hydrous because it contains water molecules in its structure.
C2 noun /ˌhaɪdroʊdaɪˈnæmɪks/

hydrodynamics

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.
C1 noun /ˈhɜːrbɪsaɪd/

herbicide

Meaning
A chemical substance used to kill unwanted plants, especially weeds.
Example
Farmers used herbicide to protect their crops from invasive weeds.
B2 adjective /ˈhɑːrti/

Hearty

Meaning
enthusiastic and friendly; substantial and nourishing
Example
He gave us a hearty welcome when we arrived at his home.
C2 adjective /hɪk/

Hick

Meaning
unsophisticated person from a rural area; country bumpkin
Example
He had a hick accent from growing up in a small town.
A2 adverb /ˈɒnɪstli/

honestly

Meaning
in a truthful, sincere, or fair way
Example
She spoke honestly about her mistakes.
B2 verb /hæk/

hack

Meaning
to cut or chop roughly; to gain unauthorized access to a computer system
Example
The programmer managed to hack into the system.
A1 noun /haʊs/

house

Meaning
A building for people to live in, usually with rooms and a roof.
Example
They bought a new house in the city.
C1 noun /ˈhɛrəsi/

heresy

Meaning
belief or opinion that goes against established religious doctrine or accepted beliefs.
Example
In medieval times, heresy was often punished severely.
B1 noun /ˈhel.mət/

Helmet

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.
A1 noun /ˈaʊər/

hour

Meaning
A period of time equal to 60 minutes.
Example
The meeting lasted for two hours.
C2 verb /haɪ/

hie

Meaning
to go quickly; hasten
Example
He hied to the station to catch the train.
C1 noun /haɪˈpɜːrbəli/

hyperbole

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.
B2 adverb /hɛns/

hence

Meaning
for this reason; as a result
Example
She was the best candidate, hence she was chosen for the job.
C1 verb /ˈheɪsən/

hasten

Meaning
To move or act quickly; to cause something to happen sooner.
Example
He hastened to finish his work before the deadline.
C1 adverb /ˈhɛdˌlɔŋ/

headlong

Meaning
With the head leading; in a rush or without thinking.
Example
She rushed headlong into the new project.
C1 noun /ˈheɪˌdeɪ/

heyday

Meaning
The period of greatest success, popularity, or power.
Example
In its heyday, the company dominated the market.
C1 noun /ˈhɜːrniə/

hernia

Meaning
A medical condition where an organ pushes through the muscle or tissue holding it in place.
Example
The doctor diagnosed him with an inguinal hernia.
B1 noun /ˈhaʊshoʊld/

household

Meaning
All the people living together in one house, considered as a unit.
Example
There are five people in our household.
C2 noun /ˈhɛptɑːrki/

heptarchy

Meaning
A group of seven rulers or governments, especially the seven Anglo-Saxon kingdoms in early England.
Example
The history book described the heptarchy of Anglo-Saxon England.
A2 verb /ˈhɜːri/

hurry

Meaning
to move or act with great speed; to rush
Example
We need to hurry or we'll be late.
C2 noun /ˌhæŋ.ki ˈpæŋ.ki/

Hanky-Panky

Meaning
dishonest or suspicious activity; unethical behavior; trickery or deception
Example
The audit revealed some hanky-panky in the company's financial records.
C1 adjective /ˈhæpləs/

hapless

Meaning
unfortunate, unlucky, deserving pity
Example
The hapless traveler lost his passport on the very first day.
B1 noun /ˈhʌŋɡər/

hunger

Meaning
the feeling of discomfort caused by lack of food
Example
The child cried out of hunger.
C2 noun /ˌhɛtərəʤəˈniːɪti/

heterogeneity

Meaning
the quality or state of being diverse in character or content
Example
The cultural heterogeneity of the city makes it vibrant and unique.
B2 verb /ˈhezɪteɪt/

hesitate

Meaning
to pause before acting; to be uncertain about what to do
Example
Don't hesitate to ask for help.
C2 verb /həˈbɪtʃuˌeɪt/

habituate

Meaning
to make someone accustomed to something
Example
The monks habituated themselves to meditation.
B2 adjective /ˈhelp.ləs/

Helpless

Meaning
unable to defend oneself or act without help; powerless; vulnerable
Example
The child felt helpless when lost in the crowded market.
C1 adjective /ˌhɒməˈdʒiːniəs/

homogeneous

Meaning
Of the same kind; alike.
Example
The team was not homogeneous in their skills.
C2 adjective /ˌhaɪ ˈfloʊn/

high-flown

Meaning
Using fancy or pretentious language; lofty in style but often overblown.
Example
The politician gave a high-flown speech full of promises.
C2 adjective /ˌhɪstriˈɒnɪk/

histrionic

Meaning
Overly dramatic or theatrical in behavior or style.
Example
Her histrionic reaction to the small problem surprised everyone.
A2 adjective /ˈhevi/

Heavy

Meaning
having great weight; intense or severe
Example
The heavy suitcase was difficult to carry up the stairs.
C2 noun /ˈhɑː.mə.li/

Homily

Meaning
a religious discourse delivered as part of a church service; a tedious moralizing lecture
Example
The priest delivered an inspiring homily about compassion and forgiveness during Sunday service.
B2 noun /ˈhɑːr.mə.ni/

harmony

Meaning
A pleasing combination of different elements or a state of peaceful coexistence.
Example
A society thrives when there is harmony among its people.
C1 noun /ˈhaɪndsaɪt/

hindsight

Meaning
Understanding of a situation only after it has happened.
Example
With the benefit of hindsight, we realized the decision was a mistake.
B2 noun /ˈhoʊmlænd/

homeland

Meaning
a person's native country or region
Example
She returned to her homeland after ten years abroad.
B2 adjective /ˈhɒs.taɪl/

Hostile

Meaning
unfriendly; aggressive; antagonistic;
Example
The hostile environment made it difficult to work.
C1 noun ˈhɪn.drəns

hindrance

Meaning
Something that creates difficulties or delays in progress.
Example
Lack of funds was a major hindrance to the project.
B1 noun /hel/

Hell

Meaning
a place regarded in various religions as a spiritual realm of evil and suffering; an extremely unpleasant experience
Example
Working in the factory during summer was absolute hell due to the extreme heat.
C1 adjective /hɜːrˈbɪv.ər.əs/

Herbivorous

Meaning
feeding on plants; plant-eating
Example
Cows are herbivorous animals that graze on grass.
B2 adjective /ˈhʌm.bəl/

Humble

Meaning
modest; not proud; unassuming;
Example
Despite his success, he remained humble and kind.
B2 noun /ˈhɔːrmoʊn/

hormone

Meaning
a chemical substance produced in the body that influences how the body grows or functions
Example
Insulin is a hormone that controls blood sugar levels.
B2 noun /ˈhæb.ɪ.tæt/

habitat

Meaning
The natural environment where an organism lives and meets its needs.
Example
The polar bear's natural habitat is the Arctic region.
C2 noun /ˈhʌk.stər/

huckster

Meaning
A person who sells small items aggressively, often in a showy or dishonest way.
Example
The huckster loudly promoted his goods in the busy marketplace.
A2 noun /hɛn/

Hen

Meaning
female chicken
Example
The hen laid fresh eggs in the nest.
B2 noun ˈhɛr.ɪ.tɪdʒ

heritage

Meaning
Property that is or may be inherited; something transmitted by or acquired from a predecessor; cultural traditions and practices that are passed down.
Example
Bangladesh has a rich cultural heritage.
C1 verb /ˈhʌsəl/

hustle

Meaning
to move quickly and energetically; to push or work hard to achieve something
Example
She had to hustle to finish the project on time.
B2 noun /ˈhɑːrvɪst/

harvest

Meaning
the process or period of gathering crops
Example
Farmers are busy during the rice harvest season.
A2 noun /hɔːl/

Hall

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.
C1 noun /ˈhɔːr.nət/

Hornet

Meaning
a large wasp that can sting and is often aggressive
Example
The hornet built its nest under the roof.
B1 verb /ˈhɛdɪŋ/

heading

Meaning
Moving in a particular direction.
Example
The ship is heading toward Antarctica.
C2 adjective /ˈhed.i/

Heady

Meaning
having a strong or exhilarating effect; intoxicating; exciting
Example
The heady perfume of jasmine filled the garden.
B2 noun /hɔːk/

Hawk

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.
C2 noun /ˈhɜːrmɪtɪdʒ/

hermitage

Meaning
A secluded residence or retreat, often for a hermit or religious recluse.
Example
The monk spent years in a hermitage deep in the forest.
A2 verb /hɪt/

hit

Meaning
to strike; to reach a target
Example
He hit the ball with the bat.
C2 noun /ˈhaʊsˌbreɪkɪŋ/

housebreaking

Meaning
the crime of breaking into a house with intent to steal
Example
The thief was arrested for housebreaking.
C1 noun /haɪˈeɪtəs/

hiatus

Meaning
A pause or break in continuity of a process or activity.
Example
The show returned after a long hiatus.
C2 noun /ˈhæk.ni ˈkær.ɪdʒ/

Hackney carriage

Meaning
A taxi; a car licensed to carry passengers for hire
Example
I called a hackney carriage to get to the airport.
C1 adjective /ˌhaɪdroʊɪˈlɛktrɪk/

hydroelectric

Meaning
Relating to or denoting the generation of electricity using flowing water.
Example
The country invested heavily in hydroelectric power plants.
B2 adjective /ˌhaɪ ˈtɛk/

high-tech

Meaning
using or involving advanced technology.
Example
The company produces high-tech medical devices.
B2 noun /er/

Heir

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.
C1 adjective /ˈhɔː.ti/

Haughty

Meaning
arrogantly superior and disdainful; showing excessive pride
Example
She gave him a haughty look and walked away.
B1 noun ˌhjuː.mən ˈraɪts

human rights

Meaning
A right that is believed to belong justifiably to every person.
Example
Human rights protect individual freedoms.
B2 adjective /ˈhɑːrmləs/

Harmless

Meaning
not able or likely to cause harm; innocent; safe
Example
The snake looks dangerous but it's actually harmless.
B1 noun/verb /hɪnt/

hint

Meaning
a small piece of advice or suggestion; to suggest something indirectly
Example
She gave me a hint about the surprise party.
C1 noun /ˈhæŋ.ər/

Hangar

Meaning
a large building with extensive floor area, typically for housing aircraft; an aircraft shelter
Example
The airplane was stored safely in the hangar during the severe thunderstorm.
B1 adverb /ˈhaɪli/

highly

Meaning
to a great degree; very
Example
She is highly respected in her field.
A2 adjective /ˈhelp.fəl/

Helpful

Meaning
giving or providing assistance; useful; beneficial
Example
She was very helpful in organizing the event.
C1 verb /ˈhjuːmənaɪz/

humanize

Meaning
To make something more humane, kind, or relatable.
Example
The teacher tried to humanize the lesson with personal stories.
C1 adjective /ˈhæloʊd/

hallowed

Meaning
regarded as holy or greatly respected
Example
They walked across the hallowed halls of the old university.
B2 adverb /ˈhev.ɪ.li/

Heavily

Meaning
with great weight; to a great degree; intensely
Example
It rained heavily throughout the night.
C1 adjective /ˈhær.oʊ.ɪŋ/

harrowing

Meaning
extremely distressing or upsetting
Example
It was a harrowing experience to witness the accident.
C2 noun /ˈhækəlz/

hackles

Meaning
the hairs on the back of an animal’s neck that rise when it is angry or alarmed; figuratively, feelings of anger or resentment
Example
His rude comment raised my hackles.
C2 adjective /ˌhɑːrdˈbɪtn̩/

hard-bitten

Meaning
tough and experienced, not easily affected by emotions or hardship
Example
The hard-bitten detective showed no sign of surprise at the crime scene.
B1 noun /ˈhɛlθˌkɛər/

health-care

Meaning
the organized provision of medical services to maintain or improve health
Example
Access to quality health-care is essential for every citizen.
A1 adverb /hɪr/

here

Meaning
in, at, or to this place
Example
Please come here quickly.
C2 adjective /ˈhɔːrtətɔːri/

hortatory

Meaning
Intended to encourage or urge to action.
Example
The manager’s hortatory words inspired the team to work harder.
B2 noun /həˈraɪ.zən/

horizon

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.
C2 adjective /ˌhaɪpəˈdɜːrmɪk/

hypodermic

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.
C2 verb /ˈhæloʊ/

hallow

Meaning
to honor as holy; to make sacred or greatly respected
Example
The ancient temple was hallowed by centuries of worship.
B2 noun ˈhɑːrvɪstɪŋ

harvesting

Meaning
The process of gathering a ripe crop from the fields or collecting natural resources.
Example
Unregulated harvesting affects the biodiversity of oceans.
C2 noun /ˈhɒthɛd/

hothead

Meaning
a person who acts quickly and without thinking when angry
Example
He is such a hothead that he often starts arguments.
C2 verb /ˈhæroʊ/

harrow

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.
C2 verb /haɪˈpɒθɪkeɪt/

hypothecate

Meaning
to pledge something, such as property, as security for a debt without giving up possession of it.
Example
The company hypothecated its assets to secure the loan.
B2 noun /haɪˈdreɪʃən/

hydration

Meaning
The process of providing an adequate amount of liquid to bodily tissues.
Example
Proper hydration is essential for maintaining body functions.
B2 noun /hɪˈstɔːriən/

historian

Meaning
a person who studies or writes about history
Example
The historian gave a lecture on ancient civilizations.
C1 verb /ˈhæmpər/

hamper

Meaning
to hinder or impede the movement or progress of
Example
The heavy rain hampered our travel plans.
C1 adjective /ˌhaɪəˈrɑː.kɪ.kəl/

hierarchical

Meaning
arranged in order of rank or authority
Example
The company has a strict hierarchical structure.
C1 adjective /ˌhaɪ.drəˈpɒn.ɪk/

hydroponic

Meaning
Relating to the process of growing plants in sand, gravel, or liquid, with added nutrients but without soil.
Example
Hydroponic farming allows crops to grow without soil.
C2 adjective /hɜːrˈbeɪʃəs/

herbaceous

Meaning
Relating to or resembling herbs; plants with soft, non-woody stems.
Example
The garden was filled with herbaceous plants that thrived in the summer.
B2 noun /heɪl/

Hail

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.
B2 verb /hɔːnt/

haunt

Meaning
to trouble persistently; to visit as a ghost
Example
The old memories still haunt me.
B2 noun helθ ˈhæzərdz

health hazards

Meaning
Risks or dangers to physical health and well-being that can cause illness or injury.
Example
Plastic usage leads to significant health hazards.
C1 verb /hoʊn/

hone

Meaning
To sharpen a blade or to improve a skill through practice.
Example
She honed her presentation skills before the big meeting.
C2 noun /ˈheɪ.deɪ/

Hey day

Meaning
the period of a person's or thing's greatest success, popularity, or vigor; prime time
Example
During her heyday as a singer, she performed in sold-out concerts around the world.
C2 noun /ˈhaɪdrə/

hydra

Meaning
a many-headed serpent in Greek mythology; a problem that seems to grow worse when attempts are made to solve it
Example
Corruption is like a hydra, hard to defeat completely.
C2 noun /ˈhɛdʒɪrə/ or /hɪˈdʒaɪrə/

hegira

Meaning
a journey, especially when undertaken to escape from a dangerous or undesirable situation
Example
The refugees began their hegira across the desert.
C1 noun /ˈheɪl.stɔːrm/

Hailstorm

Meaning
a violent storm with hail falling from the sky
Example
The hailstorm damaged many cars in the parking lot.
B1 adverb /ˌhæfˈweɪ/

halfway

Meaning
at or to a point equal in distance between two points
Example
We met halfway between the two towns.
B2 noun /hɜːb/ (US) /hɜːb/ or /ɜːb/

herb

Meaning
a plant used for flavoring food, medicine, or perfume
Example
Basil is a popular herb used in Italian cuisine.
C1 adjective /ˈheɪ.zi/

Hazy

Meaning
covered with haze; unclear or vague; lacking clarity
Example
The mountain tops were hazy in the morning mist.
C1 noun /hoʊks/

Hoax

Meaning
a humorous or malicious deception; something intended to trick or deceive people
Example
The news about aliens landing turned out to be an elaborate hoax created by pranksters.
A1 noun /ˈhʌzbənd/

husband

Meaning
A married man regarded in relation to his spouse.
Example
Her husband is very supportive of her career.
B1 adjective /ˈhɪd.ən/

Hidden

Meaning
concealed from view; kept secret; not visible or apparent
Example
There was a hidden camera in the room.
B1 noun hoʊm əˈplaɪ.ənsɪz

home appliances

Meaning
Electrical devices and machines used in households for daily tasks and convenience.
Example
Modern home appliances enhance convenience.
C2 adjective /həˈrɛtɪkəl/

heretical

Meaning
Relating to or characterized by departure from accepted beliefs or standards, especially in religion.
Example
The priest condemned the book as heretical.
C1 verb /hjuːˈmɪlieɪt/

humiliate

Meaning
to make someone feel ashamed or foolish by injuring their dignity
Example
He was humiliated by his public failure.
C2 noun /haɪˈdrɒmɪtər/

hydrometer

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.
C2 noun /ˌhɜːrpəˈtɒlədʒɪst/

herpetologist

Meaning
A scientist who studies reptiles and amphibians.
Example
The herpetologist discovered a new species of frog in the rainforest.
B1 noun /ˈhɛlθˌkɛər/

healthcare

Meaning
the organized provision of medical care to people
Example
The country invested heavily in healthcare to improve public health.
B2 adjective /ˈhɑːrtˌbreɪkɪŋ/

Heartbreaking

Meaning
causing overwhelming distress; very sad or disappointing
Example
The documentary showed heartbreaking scenes of children in poverty.
B2 adjective /ˈhez.ɪ.tənt/

Hesitant

Meaning
uncertain or unwilling to act; showing doubt or reluctance
Example
She was hesitant to accept the job offer.
B2 noun /ˈhændlɪŋ/

handling

Meaning
the act of managing or dealing with something or someone
Example
His handling of the situation was impressive.
B2 noun /ˈheɪ.trəd/

Hatred

Meaning
intense dislike or ill will; a feeling of strong aversion
Example
His hatred for injustice motivated him to become a human rights lawyer.
C2 adjective /ˈhæriːd/

harried

Meaning
feeling strained or stressed due to being overworked or constantly bothered
Example
The harried teacher struggled to calm the noisy classroom.
C1 verb /həˈluːsɪneɪt/

hallucinate

Meaning
to see, hear, or sense things that are not actually present, often due to illness or drugs
Example
After taking the medicine, he began to hallucinate strange shapes.
C1 adjective /ˈhiːdləs/

heedless

Meaning
showing a reckless lack of care or attention
Example
He drove with heedless disregard for the rules.
A1 noun /hoʊm/

home

Meaning
the place where one lives, especially with family; a residence
Example
She finally returned home after a long journey.
C2 noun /hʊˈzɑːr/

hussar

Meaning
a member of a light cavalry regiment in European armies, especially the Hungarian cavalry
Example
The hussar rode swiftly across the battlefield.