hydrometer
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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.
A1 noun /ˈhɒlɪdeɪ/

holiday

Meaning
A day of celebration or rest when most people do not work.
Example
We are planning a trip during the summer holiday.
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.
B2 noun /ˈhaɪdrədʒən/

hydrogen

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.
B1 adjective /ˈhɪd.ən/

Hidden

Meaning
concealed from view; kept secret; not visible or apparent
Example
There was a hidden camera in the room.
A2 adjective /ˈɑːnɪst/

honest

Meaning
free of deceit and untruthfulness; sincere
Example
She is known as an honest and trustworthy person.
B2 adjective /ˈhændi/

handy

Meaning
convenient to use or easily accessible; skillful with the hands
Example
This pocket knife is very handy when you go camping.
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.
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.
A1 interjection /hɑː/

ha

Meaning
used to express amusement, surprise, or triumph
Example
Ha! I knew you couldn’t resist joining us.
A1 pronoun /hiː/

he

Meaning
used to refer to a male person or animal already mentioned or easily identified
Example
He is my best friend.
C1 verb /hɔːrd/

hoard

Meaning
to accumulate and hide away a large supply of something, often secretly
Example
During the crisis, many people began to hoard food and water.
B2 adjective /ˈhɜː.bəl/

herbal

Meaning
Made from or containing herbs, especially for medicinal purposes.
Example
Herbal remedies were widely used here.
A1 verb /ˈhæpən/

happen

Meaning
to occur or take place; to come about by chance
Example
What happened at the meeting yesterday?
C1 adjective /ˈhɛlθfəl/

healthful

Meaning
Promoting good health; beneficial to health.
Example
A healthful diet includes fresh fruits and vegetables.
A2 noun /hɪl/

Hill

Meaning
a naturally raised area of land, not as high or craggy as a mountain
Example
The children enjoyed rolling down the grassy hill behind their house during summer vacation.
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.
B2 noun /ˈhoʊmlænd/

homeland

Meaning
a person's native country or region
Example
She returned to her homeland after ten years abroad.
C2 verb /hjuː/

hew

Meaning
To chop or cut something, especially wood or stone, with a tool.
Example
The workers hewed logs to build the cabin.
C2 verb /ˈhæri/

harry

Meaning
to constantly attack, harass, or annoy
Example
The army harried the enemy with sudden raids.
C2 noun /ˌhaɪdrəˈstætɪks/

hydrostatics

Meaning
The branch of science concerned with the mechanical properties of fluids at rest.
Example
Hydrostatics is essential in understanding how dams and reservoirs function.
B2 noun /ˈhɔːr.ər/

Horror

Meaning
an intense feeling of fear, shock, or disgust; something that causes such feelings
Example
The survivors described the horror of the earthquake that destroyed their entire village.
A1 noun, adjective /hæf/

half

Meaning
one of two equal parts of something
Example
He ate half of the cake.
C2 noun /ˈhæŋ.kər.ɪŋ/

hankering

Meaning
a strong desire or craving for something.
Example
She had a hankering for chocolate late at night.
A1 interjection /heɪ/

hey

Meaning
used to attract attention, express surprise, or greet someone
Example
Hey, how are you doing today?
C1 adjective /ˈhæpləs/

hapless

Meaning
unfortunate, unlucky, deserving pity
Example
The hapless traveler lost his passport on the very first day.
C2 verb /həˈbɪtʃuˌeɪt/

habituate

Meaning
to make someone accustomed to something
Example
The monks habituated themselves to meditation.
C2 noun /ˌhoʊmə.dʒəˈniːəti/

homogeneity

Meaning
The quality or state of being all the same or all of the same kind.
Example
The cultural homogeneity of the village made it feel unified.
C1 adjective ˌhaɪ.pəˈθet.ɪ.kəl

hypothetical

Meaning
Based on or serving as a hypothesis; supposed but not necessarily real or true.
Example
The discussion was based on hypothetical scenarios.
B1 verb /ˈhaɪˌlaɪt/

highlight

Meaning
to emphasize or make something stand out
Example
The teacher highlighted the most important points in the text.
C2 noun /ˈhæbɪtənt/

habitant

Meaning
An inhabitant; a person or animal that lives in a particular place.
Example
The habitants of the village were friendly and welcoming.
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 ˈhæb.ɪt fɔːrˌmeɪ.ʃən

habit formation

Meaning
The process of creating a habit through regular practice and repetition.
Example
Habit formation requires consistency and discipline.
C1 adjective /ˌhæpˈhæz.ɚd/

haphazard

Meaning
Lacking any obvious principle of organization; random.
Example
His haphazard approach led to project failure.
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.
A2 interjection /hʌ/

huh

Meaning
used to express confusion, surprise, or that you did not hear something
Example
Huh? What did you say?
C1 noun /ˈhɪpnətɪzəm/

hypnotism

Meaning
The practice or act of inducing hypnosis.
Example
He studied hypnotism as part of his psychology degree.
C1 noun /ˈɛər.luːm/

heirloom

Meaning
a valuable object that has belonged to a family for several generations
Example
The ring is a family heirloom passed down from her grandmother.
C1 adjective /ˈhæɡ.ərd/

Haggard

Meaning
looking exhausted and unwell, especially from fatigue, worry, or suffering
Example
After working three nights without sleep, he looked haggard.
B1 noun /ˈhændˌraɪ.tɪŋ/

handwriting

Meaning
the style or manner of writing by hand.
Example
Her handwriting is very neat and easy to read.
B1 noun /ˈhæm.ər/

Hammer

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.
B2 noun, verb /ˈhɑːrbər/

harbor

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.
C1 noun ˌhaɪ.drəˈlɒdʒ.ɪ.kəl ˈsaɪ.kəl

hydrological cycle

Meaning
The cycle of processes by which water circulates between the earth's oceans, atmosphere, and land.
Example
The hydrological cycle ensures continuous water movement in nature.
C1 noun /ˈhjuːbrɪs/

hubris

Meaning
excessive pride or self-confidence
Example
His hubris led to his downfall.
B2 adjective /ˌhɒrɪˈzɒntəl/

horizontal

Meaning
parallel to the horizon; flat and level from side to side
Example
The table must be perfectly horizontal to keep the glass from sliding.
B1 adjective /hɪˈstɔːrɪkəl/

historical

Meaning
Related to history or past events.
Example
The museum has a large collection of historical documents.
C1 adjective /ˈhɑːrtˌrɛndɪŋ/

heartrending

Meaning
Causing great sadness or distress; very moving emotionally.
Example
The documentary showed heartrending scenes of war victims.
C1 adverb /ˈhɒtli/

hotly

Meaning
in an intense, angry, or passionate way
Example
She hotly denied the accusations.
C1 adjective /ˈhɪd.i.əs/

Hideous

Meaning
extremely ugly or unpleasant; causing shock or disgust
Example
The monster in the movie had a hideous appearance.
C2 verb /ˈhɑːbəl/

hobble

Meaning
to walk awkwardly with difficulty, usually due to injury
Example
He hobbled across the room after twisting his ankle.
B2 noun /ˌhɪp.əˈpɒt.ə.məs/

Hippopotamus

Meaning
a large, mostly herbivorous mammal that lives in and around water in Africa
Example
The hippopotamus spends most of its day in the water.
B2 noun /ˈhɑːrd.ʃɪp/

Hardship

Meaning
severe suffering or privation; difficulty or distress
Example
Despite facing many hardships during the war, the family remained united and hopeful.
B2 noun /ˈhɑːt.biːt/

heartbeat

Meaning
A pulsation of the heart, especially as perceptible to the touch or audible with a stethoscope.
Example
Rubbing the eyes helps normalize the heartbeat.
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.
C1 noun /ˈhæŋ.ər/

Hanger

Meaning
a shaped piece of wood, plastic, or metal with a hook at the top, used to hang up clothes
Example
She hung her dress on a wooden hanger to prevent it from getting wrinkled.
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.
A2 noun /hɛn/

Hen

Meaning
female chicken
Example
The hen laid fresh eggs in the nest.
C1 noun /haɪˈpɒθəsɪs/

hypothesis

Meaning
a proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Example
The scientist tested her hypothesis through multiple experiments.
C1 noun /ˈhɑː.mɪdʒ/

Homage

Meaning
special honor or respect shown publicly; tribute paid to someone in recognition of their merit
Example
The memorial service was a touching homage to the brave soldiers who sacrificed their lives.
C1 noun /ˈhʌbʌb/

hubbub

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.
B1 adjective /ˈhoʊpləs/

Hopeless

Meaning
feeling or causing despair about something; without hope; desperate
Example
The situation seemed hopeless until help arrived.
A2 verb /hʌɡ/

hug

Meaning
to hold someone tightly in your arms to show affection or comfort
Example
She hugged her friend before leaving for the airport.
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 adjective /ˈhæm ˌhændɪd/

ham-handed

Meaning
clumsy or inept in handling things or situations
Example
His ham-handed attempt to fix the computer made it worse.
C2 adjective/noun /haɪˈbɜːrniən/

hibernian

Meaning
Relating to Ireland or the Irish.
Example
He enjoyed reading about Hibernian culture and history.
C2 noun /ˈhænd ˌrɪŋɪŋ/

hand-wringing

Meaning
excessive worry or concern expressed in a visible or dramatic way.
Example
There was much hand-wringing over the political crisis.
B2 noun /ˈher ˌpɪn/

Hair pin

Meaning
a thin piece of metal or plastic used to hold hair in place
Example
She used several hair pins to secure her elegant updo.
A1 noun /ˈhʌzbənd/

husband

Meaning
A married man regarded in relation to his spouse.
Example
Her husband is very supportive of her career.
B2 noun /ˈɑːnər/

honor

Meaning
high respect; great esteem
Example
He received an award in honor of his achievements.
A1 adjective /haɪ/

high

Meaning
At or to a great height; greater than normal in amount, degree, or intensity.
Example
The mountain peak is very high.
B2 noun, adjective /hjuːˌmænɪˈtɛəriən/

humanitarian

Meaning
A person who seeks to promote human welfare, or something relating to human welfare and compassion.
Example
The organization provides humanitarian aid to disaster victims.
C2 noun /hʌsk/

husk

Meaning
the dry outer covering of some fruits or seeds
Example
The corn husk was peeled away before cooking.
A1 adverb /haʊ/

how

Meaning
in what way or manner; by what means
Example
How do you solve this problem?
B2 noun /ˈhɑːrvɪst/

harvest

Meaning
the process or period of gathering crops
Example
Farmers are busy during the rice harvest season.
C1 noun /ˈhaɪdəweɪ/

hideaway

Meaning
A place used as a retreat or a place to hide.
Example
The cabin in the woods was their secret hideaway.
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.
C1 noun /hɪpˈnoʊsɪs/

hypnosis

Meaning
A trance-like state of consciousness usually induced by suggestion.
Example
She underwent hypnosis to overcome her fear of flying.
B2 noun /ˈhæs.əl/

Hassle

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.
B1 adjective /ˈhæn.səm/

handsome

Meaning
attractive in appearance, usually referring to men; also can mean generous or impressive in size.
Example
He looked very handsome in his new suit.
A1 pronoun /hɜːrz/

hers

Meaning
used to refer to something that belongs to or is associated with a female person previously mentioned or easily identified.
Example
That blue bag is hers.
C2 noun /hoʊ/

Hoe

Meaning
a gardening tool with a thin metal blade used for breaking up soil and removing weeds
Example
The farmer used a hoe to remove weeds from his vegetable garden.
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 /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.
C1 noun /hɪm/

hymn

Meaning
A religious song or poem of praise to God or a deity.
Example
The congregation sang a hymn during the morning service.
C1 adjective /hɔːrs/

Hoarse

Meaning
rough or harsh in sound; having a rough voice from shouting or illness
Example
His voice became hoarse after shouting at the concert.
C1 noun /hɑːrp/

Harp

Meaning
a large triangular musical instrument with strings that are plucked
Example
The angel played a beautiful melody on the harp.
B1 verb/noun /haɪk/

hike

Meaning
To take a long walk in the countryside or mountains; also to increase suddenly (prices, rates, etc.).
Example
We decided to hike in the hills this weekend.
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.
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 adjective /həˈmɑː.dʒə.nəs/

homogenous

Meaning
Similar or uniform in nature; often used interchangeably with 'homogeneous'.
Example
The class was made up of a homogenous group of students.
C2 noun /ˌhaɪdroʊˈfoʊbiə/

hydrophobia

Meaning
Extreme or irrational fear of water; historically, another name for rabies.
Example
After being bitten by a stray dog, the man was treated for hydrophobia.
C2 adjective /heɪl/

hale

Meaning
strong and healthy, especially of an elderly person
Example
Despite his age, the man remained hale and active.
A2 noun /haɪt/

height

Meaning
the measurement of someone or something from base to top
Example
The height of the tower impressed the visitors.
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.
B1 noun /hjuːˈmænɪti/

humanity

Meaning
the quality of being human; kindness or compassion towards others; all human beings collectively
Example
Kindness is one of the greatest expressions of humanity.
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.
C2 verb /ˈhɑːrpɪŋ/

harping

Meaning
continuously talking or complaining about something in a tiresome way
Example
She kept harping on about the mistakes I made.
B2 adverb /hɪˈstɒrɪkli/

historically

Meaning
in a way that relates to history or past events
Example
Historically, this city was a major trade center.
A1 adjective /hɒt/

Hot

Meaning
having high temperature; warm; heated;
Example
The coffee is too hot to drink.
B1 noun /ˈɒnɪsti/

honesty

Meaning
the quality of being truthful and sincere
Example
Honesty is the best policy in all situations.
C2 noun /ˈhʌstɪŋz/

hustings

Meaning
the political campaigning and speeches before an election
Example
The candidate gained popularity during the hustings.
A1 adjective /hɑːrd/

hard

Meaning
solid, firm, or difficult to do or endure
Example
The exam was very hard for most students.
B1 noun /ˈhɔːlweɪ/

hallway

Meaning
a corridor in a building that connects rooms
Example
The kids left their shoes in the hallway.
C1 adverb /ˈhed ɑn/

Head-on

Meaning
directly facing; in direct confrontation or collision
Example
The two cars collided head-on at the intersection.
A2 verb /hiːt/

heat

Meaning
to make or become hot or warm
Example
Please heat the soup before serving.
A1 interjection /həˈloʊ/

hello

Meaning
a greeting or expression used when meeting someone or starting a conversation
Example
She answered the phone with a cheerful hello.
A1 adjective /ˈhæpi/

happy

Meaning
feeling or showing pleasure, contentment, or joy
Example
She was very happy to receive the gift.
C2 noun /ˌhoʊ.mi.oʊˈsteɪ.sɪs/

homeostasis

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.
A1 interjection /haɪ/

hi

Meaning
a friendly greeting used when meeting someone
Example
Hi, it's nice to meet you!
B2 noun /heɪst/

Haste

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.
C1 adjective /həˈred.ɪ.ter.i/

Hereditary

Meaning
passed down through family genes; inherited from ancestors
Example
The hereditary disease was passed down through generations.
C2 adjective /ˈhɜːrsuːt/

hirsute

Meaning
Having a lot of hair, especially in an unusual place.
Example
The hirsute man stood out in the crowd with his long beard.
C1 noun /hjuː/

hue

Meaning
A color or shade.
Example
The artist chose a soft blue hue for the background.
C1 adjective /ˈheɪt.fəl/

Hateful

Meaning
causing or deserving hatred; extremely unpleasant or offensive
Example
His hateful comments hurt everyone's feelings.
B1 verb /haɪər/

hire

Meaning
to employ someone for wages; to rent or engage services
Example
The company will hire new employees next month.
C2 noun /hɪˈlærɪti/

hilarity

Meaning
Extreme amusement, especially when expressed by laughter.
Example
The movie caused great hilarity among the audience.
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.
C1 verb /ˈhaɪtən/

heighten

Meaning
to make or become greater in intensity or degree
Example
The announcement served to heighten the excitement in the room.
A2 verb /hɑːrm/

harm

Meaning
to cause damage, injury, or hurt to someone or something
Example
Smoking can harm your health.
B1 adjective /ˈhoʊpfəl/

Hopeful

Meaning
feeling or inspiring optimism about a future event; confident; optimistic
Example
He remained hopeful despite the challenges.
B1 noun /ˈhæŋ.kər.tʃɪf/

Handkerchief

Meaning
a small piece of cloth used for wiping the nose or face
Example
She always carries a clean handkerchief in her purse.