health hazards
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
B2 noun helθ ˈhæzərdz

health hazards

健康リスク
Meaning
Risks or dangers to physical health and well-being that can cause illness or injury.
Example
Plastic usage leads to significant health hazards.
プラスチックの使用は重大な健康リスクを引き起こします。
C1 adjective /həˈred.ɪ.ter.i/

Hereditary

遺伝的; 先祖から受け継がれた
Meaning
passed down through family genes; inherited from ancestors
Example
The hereditary disease was passed down through generations.
遺伝性疾患は世代を超えて受け継がれました。
C1 adjective /ˌhæpi ɡoʊ ˈlʌki/

happy-go-lucky

おおらかで、気楽な、無頓着な
Meaning
cheerfully unconcerned about the future; carefree
Example
She has a happy-go-lucky attitude and never worries about tomorrow.
彼女はハピゴーラッキーな態度を持っており、明日のことを心配することはありません。
B2 noun /həˈraɪ.zən/

horizon

地平線
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.
太陽は地平線の下に消えました。
B2 noun /ˈhɑːt.biːt/

heartbeat

心拍
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.
目をこすることで心拍を正常に戻すのに役立ちます。
C1 noun /haɪˈpɒtənjuːs/

hypotenuse

斜辺
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.
直角三角形では、斜辺は常に他の二辺より長いです。
B1 adverb /ˈhoʊpfəli/

hopefully

希望的に
Meaning
in a hopeful manner; expressing hope or optimism
Example
Hopefully, the weather will be nice tomorrow.
明日、天気が良いことを願っています。
C2 noun, verb /ˈhæmstrɪŋ/

hamstring

太ももの後ろの腱; 動詞として、誰かまたは何かの効果を制限または著しく制限する
Meaning
a tendon at the back of the thigh; as a verb, to cripple or severely restrict the effectiveness of someone or something.
Example
Budget cuts hamstrung the organization’s plans.
予算削減により、組織の計画が弱体化しました。
C1 noun /hɪˈpɑː.krə.si/

Hypocrisy

偽善
Meaning
the practice of claiming to have moral standards that one does not actually possess; insincerity
Example
His hypocrisy was exposed when he criticized others for the same mistakes he had made.
彼が自分の犯した同じ過ちを他人を非難したとき、偽善が露呈した。
C1 adjective /həˈbɪtʃuəl/

habitual

習慣的な
Meaning
Done or doing constantly or as a habit; customary.
Example
He was a habitual latecomer to class.
彼は授業に習慣的に遅刻していた。
C1 adjective /ˈhæk.nid/

hackneyed

使い古された
Meaning
Used too often and therefore lacking originality or freshness.
Example
The speech was filled with hackneyed phrases that failed to inspire the audience.
そのスピーチは使い古されたフレーズでいっぱいで、聴衆を鼓舞することはなかった。
C1 verb /ˈhæmpər/

hamper

妨げる
Meaning
to hinder or impede the movement or progress of
Example
The heavy rain hampered our travel plans.
強い雨が私たちの旅行計画を妨げました。
C1 noun ˈhɪn.drəns

hindrance

障害
Meaning
Something that creates difficulties or delays in progress.
Example
Lack of funds was a major hindrance to the project.
資金不足はプロジェクトの大きな障害でした。
B2 noun /heɪ/

hay

干し草
Meaning
grass that has been cut, dried, and stored for use as animal feed
Example
The cows were eating hay in the barn.
牛たちは納屋で干し草を食べていました。
C2 noun /hɪˈdʒɛməni/ or /ˈhɛdʒəmoʊni/

hegemony

覇権
Meaning
leadership or dominance, especially by one state or group over others
Example
The empire maintained its hegemony over neighboring states.
帝国は隣国に対してその覇権を維持した。
A2 adverb /ˈhæpɪli/

happily

幸せに
Meaning
in a happy manner; with pleasure or satisfaction
Example
The children played happily in the garden.
子供たちは庭で幸せに遊びました。
C2 noun /ˈhʌm.ək/

hummock

小丘
Meaning
A small hill, mound, or ridge of earth or ice.
Example
The hikers rested on a grassy hummock by the river.
ハイカーたちは川のそばの草むらの小丘で休憩した。
B2 noun /ˈhoʊmlænd/

homeland

故郷
Meaning
a person's native country or region
Example
She returned to her homeland after ten years abroad.
彼女は10年間海外に住んだ後、故郷に帰国した。
C2 verb (past tense, past participle), adjective /ˈhæmstrʌŋ/

hamstrung

無力または制限された
Meaning
crippled or severely restricted in movement or progress.
Example
The team was hamstrung by lack of resources.
チームはリソース不足で制約を受けていた。
B1 noun /ˈhæm.ər/

Hammer

ハンマー
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.
彼女は絵のフレームを壁に打ち付けるためにハンマーを使いました。
C1 adjective /ˈhær.oʊ.ɪŋ/

harrowing

恐ろしいと苦しみを伴う
Meaning
extremely distressing or upsetting
Example
It was a harrowing experience to witness the accident.
事故を目撃することは恐ろしい経験だった。
B1 noun /ˈhjuː.mər/

humor

Meaning
The quality of being amusing or entertaining.
Example
His sense of humor always lightens the mood.
C2 noun /ˌhɜːrpəˈtɒlədʒɪst/

herpetologist

爬虫類学者
Meaning
A scientist who studies reptiles and amphibians.
Example
The herpetologist discovered a new species of frog in the rainforest.
その爬虫類学者は熱帯雨林で新しいカエルの種を発見した。
B1 noun /ˈhæŋ.kər.tʃɪf/

Handkerchief

ハンカチ
Meaning
a small piece of cloth used for wiping the nose or face
Example
She always carries a clean handkerchief in her purse.
彼女はいつもバッグにきれいなハンカチを持っています。
C2 noun /ˈhɒthɛd/

hothead

短気な人
Meaning
a person who acts quickly and without thinking when angry
Example
He is such a hothead that he often starts arguments.
彼は短気な人で、よく議論を始める。
B2 noun ˈhæb.ɪt fɔːrˌmeɪ.ʃən

habit formation

習慣形成
Meaning
The process of creating a habit through regular practice and repetition.
Example
Habit formation requires consistency and discipline.
習慣形成には一貫性と規律が必要です。
C2 noun /ˈhʌvəl/

hovel

Meaning
a small, poorly built, and dirty house
Example
The refugees lived in a makeshift hovel.
B2 noun /er/

Heir

相続人
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.
若い王子は王位の正当な相続人であり、いつか王になるでしょう。
C1 noun /ˈheəˌkʌtər/

haircutter

理髪師
Meaning
a person whose job is to cut and style hair; barber or hairdresser
Example
The haircutter gave me a neat and stylish haircut.
理髪師がきれいに髪を切ってくれた。
C2 noun /ˈhoʊl.stər/

holster

ホルスター
Meaning
A holder or case for carrying a gun, typically worn on a belt or shoulder.
Example
The sheriff kept his revolver in a leather holster.
保安官は自分のリボルバーを革製のホルスターに入れておいた。
C2 noun /ˈhɛklər/

heckler

野次を飛ばす人
Meaning
A person who interrupts a speaker with rude or aggressive comments.
Example
The politician remained calm despite the heckler shouting from the crowd.
政治家は群衆から叫んでいたヘクラーにもかかわらず冷静を保ちました。
B2 adverb /ˈhev.ɪ.li/

Heavily

激しく; 強く
Meaning
with great weight; to a great degree; intensely
Example
It rained heavily throughout the night.
夜通し激しく雨が降った。
A2 verb /hɜːrt/

hurt

傷つける
Meaning
to cause pain or injury; to feel pain physically or emotionally
Example
My back hurts from sitting too long.
長時間座っていたので、背中が痛いです。
C2 noun /ˈhæknɪ/

hackney

貸し馬, 陳腐な
Meaning
a horse kept for ordinary riding or hire; also used for something overused or trite
Example
The old hackney was still pulling the carriage.
その古い貸し馬は今でも馬車を引いていた。
B2 noun /hʌm/

Hum

ぶんぶん音
Meaning
a low continuous sound; to make a low continuous droning sound
Example
The constant hum of the air conditioner helped her fall asleep peacefully.
エアコンの絶え間ないぶんぶん音が彼女が安らかに眠るのを助けました。
C2 verb /ˈhɜːrtl/

hurtle

猛スピードで進む
Meaning
To move or cause to move at great speed, often in a dangerous way.
Example
The car hurtled down the mountain road.
車は山道を猛スピードで下っていました。
B2 noun /ˈhɑːr.bər/

Harbour

港
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.
漁船は嵐が海岸を襲う前に安全に港に戻りました。
C1 noun /ˈhæŋ.ər/

Hangar

ハンガー
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.
飛行機は激しい雷雨の間、安全にハンガーに保管されていました。
A1 adjective /hɑːrd/

hard

硬い
Meaning
solid, firm, or difficult to do or endure
Example
The exam was very hard for most students.
試験はほとんどの学生にとって非常に難しかった。
C1 noun /ˈhɪntərlænd/

hinterland

内陸地域
Meaning
The remote or less developed areas away from the coast or a city.
Example
The farmers came from the rural hinterland to sell their produce in the city.
農民たちは地方の内陸地域から来て、都市で自分たちの農産物を販売しました。
A2 verb /ˈhɜːri/

hurry

急ぐ
Meaning
to move or act with great speed; to rush
Example
We need to hurry or we'll be late.
急がないと遅れちゃうよ。
C1 noun /ˌhaɪ.roʊˈɡlɪf.ɪks/

hieroglyphics

ヒエログリフ
Meaning
a system of writing using pictures or symbols, used especially by ancient Egyptians
Example
The tomb walls were covered with Egyptian hieroglyphics.
墓の壁にはエジプトのヒエログリフが刻まれていた。
C2 verb /həˈræŋ/

harangue

長く情熱的な演説をする
Meaning
to deliver a long, passionate, and often angry speech
Example
The politician harangued the crowd for over an hour.
政治家は群衆に一時間以上も演説をしました。
C1 noun /ˈhiːdəˌnɪzəm/

hedonism

快楽主義
Meaning
The pursuit of pleasure and self-indulgence as the highest goal.
Example
The lifestyle of the rich is often criticized as pure hedonism.
金持ちのライフスタイルはしばしば純粋な快楽主義として批判されます。
A2 noun /ˈhɒki/

hockey

ホッケー
Meaning
a sport played with sticks and a ball or puck on ice or a field
Example
He plays hockey for the national team.
彼は代表チームのためにホッケーをします。
A2 verb /haɪd/

hide

隠す
Meaning
to put or keep out of sight; to conceal from view
Example
Children like to hide during games.
子供たちはゲームのときに隠れるのが好きです。
C1 noun /ˈhɑː.mɪdʒ/

Homage

敬意; 尊敬; 追悼
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.
追悼式は、命を捧げた勇敢な兵士たちへの感動的な敬意でした。
C1 noun /ˈhiːdənɪst/

hedonist

快楽主義者
Meaning
A person who believes that the pursuit of pleasure is the most important thing in life.
Example
She was called a hedonist because she always prioritized enjoyment over duty.
彼女は常に義務よりも楽しみを優先していたため、快楽主義者と呼ばれました。
C2 adjective /hərˈmɛtɪk/

hermetic

密閉
Meaning
Completely sealed, especially so that no air can enter or escape.
Example
The medicine was kept in a hermetic container.
薬は密閉された容器に保管されていました。
C2 noun /ˌhoʊ.mi.oʊˈsteɪ.sɪs/

homeostasis

体内の均衡、生理的過程によって維持される生理的安定性
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.
人間の体は温度調節によってホメオスタシスを維持します。
C1 adverb /ˈhed ɑn/

Head-on

正面衝突
Meaning
directly facing; in direct confrontation or collision
Example
The two cars collided head-on at the intersection.
二台の車は交差点で正面衝突しました。
A1 noun /ˈhoʊmwɜːrk/

homework

宿題
Meaning
schoolwork that a student does at home
Example
I need to finish my math homework before dinner.
夕食前に数学の宿題を終わらせなければなりません。
B2 noun /ˈhedʒhɒɡ/

Hedge-hog

ハリネズミ
Meaning
a small mammal with a spiny coat that can roll into a ball for defense
Example
The hedgehog rolled into a ball when it felt threatened.
ハリネズミは脅威を感じるとボールのように丸くなります。
B2 adjective /ˈhjuː.mər.əs/

Humorous

ユーモアのある; 面白い; 笑いを引き起こす;
Meaning
funny; amusing; causing laughter;
Example
His humorous stories always make everyone laugh.
彼のユーモラスな話はいつも皆を笑わせる。
C2 adjective /ˌhæfˈbeɪkt/

half-baked

中途半端
Meaning
poorly thought out or badly planned
Example
The manager quickly rejected his half-baked proposal.
マネージャーは彼の中途半端な提案をすぐに却下しました。
B1 noun /ˈhaʊzɪŋ/

housing

住宅
Meaning
buildings or structures where people live; accommodation
Example
The government is working to provide affordable housing for everyone.
政府はすべての人々に手頃な住宅を提供するために努力しています。
C1 noun/verb /ˈhɛrəld/

herald

先駆者
Meaning
A person or thing that announces or signals the approach of something; to announce or signal.
Example
The blooming flowers herald the arrival of spring.
咲いた花々は春の到来を告げます。
C1 adjective /ˈhæpləs/

hapless

不運な, 不幸な
Meaning
unfortunate, unlucky, deserving pity
Example
The hapless traveler lost his passport on the very first day.
不運な旅行者は、初日にパスポートを失くしました。
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.
B2 noun /ˈhʌrɪkən/

hurricane

ハリケーン
Meaning
A violent tropical storm with very strong winds and heavy rain.
Example
The hurricane destroyed hundreds of homes along the coast.
ハリケーンは沿岸の数百軒の家を破壊しました。
C2 verb /haɪ/

hie

急ぐ
Meaning
to go quickly; hasten
Example
He hied to the station to catch the train.
彼は電車に乗るために駅へ急いだ。
C1 adjective /hɜːrˈbɪv.ər.əs/

Herbivorous

草食性
Meaning
feeding on plants; plant-eating
Example
Cows are herbivorous animals that graze on grass.
牛は草食性の動物で、草を食べる。
C2 noun /ˈhaɪdrə/

hydra

ヒドラ
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.
汚職はヒドラのようで、完全に打ち負かすのは難しい。
A2 adjective /ˈhelp.fəl/

Helpful

役立つ; 有益な
Meaning
giving or providing assistance; useful; beneficial
Example
She was very helpful in organizing the event.
彼女はイベントの準備に非常に役立ちました。
C1 noun /ˈhaɪbrɪd/

hybrid

ハイブリッド
Meaning
a mixture of two different things, often combining the best qualities of both
Example
The car is a hybrid that runs on both electricity and fuel.
その車は電気と燃料の両方で走るハイブリッド車です。
A1 noun /hænd/

Hand

手
Meaning
the end part of a person's arm beyond the wrist, including the palm, fingers, and thumb
Example
He raised his hand to ask a question.
彼は質問をするために手を上げました。
C1 adjective /ˌhɒməˈdʒiːniəs/

homogeneous

均一な、同質な
Meaning
Of the same kind; alike.
Example
The team was not homogeneous in their skills.
チームはそのスキルにおいて均一ではなかった。
B2 noun /ˈhæz.ərd/

Hazard

危険; リスク
Meaning
a danger or risk; something that poses a threat to safety
Example
Smoking is a serious health hazard that can lead to lung cancer and heart disease.
喫煙は深刻な健康リスクであり、肺癌や心臓病を引き起こす可能性があります。
B2 noun /hɜːb/ (US) /hɜːb/ or /ɜːb/

herb

ハーブ
Meaning
a plant used for flavoring food, medicine, or perfume
Example
Basil is a popular herb used in Italian cuisine.
バジルはイタリア料理で人気のあるハーブです。
C1 adjective /ˈhæloʊd/

hallowed

神聖
Meaning
regarded as holy or greatly respected
Example
They walked across the hallowed halls of the old university.
彼らは古い大学の神聖な廊下を歩いた。
C2 adjective /ˌhaɪpərˈkrɪtɪkl/

hypercritical

過剰に批判的な
Meaning
Excessively or unreasonably critical.
Example
The teacher was often hypercritical of small mistakes.
教師は小さなミスに対して過剰に批判的でした。
C1 noun /ˈhɜːrniə/

hernia

ヘルニア
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.
医者は彼に鼠径ヘルニアと診断しました。
C2 verb /ˈhæroʊ/

harrow

苦しめる / すき
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.
悲劇的なニュースは家族全員を苦しめました。
A2 noun /ˈhɑː.bi/

Hobby

趣味; お楽しみ; 遊び
Meaning
an activity done regularly in one's leisure time for pleasure; a pastime or recreation
Example
Photography became her favorite hobby after she received a camera for her birthday.
写真は彼女のお気に入りの趣味になりました、彼女の誕生日にカメラをもらった後で。
C2 noun /ˈhɛfər/

heifer

雌牛
Meaning
a young cow that has not borne a calf
Example
The farmer raised a heifer for dairy production.
農家は乳製品の生産のためにヘイファーを育てました。
A2 noun /ˈherˌdrɛsər/

hairdresser

美容師
Meaning
a person whose job is to cut, style, and treat hair
Example
The hairdresser gave me a stylish haircut before the wedding.
美容師は結婚式の前に私におしゃれな髪型をしてくれました。
C2 noun /ˌhaɪdrəˈstætɪks/

hydrostatics

静水力学
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.
静水力学はダムや貯水池の機能を理解するために不可欠です。
B2 noun hɛdʒ

hedge

ヘッジ戦略
Meaning
A way of protecting oneself against financial loss or other adverse circumstances.
Example
Investors use hedging strategies to protect against market volatility.
投資家は市場の変動から守るためにヘッジ戦略を使用します。
A1 noun /ˈhʌzbənd/

husband

夫
Meaning
A married man regarded in relation to his spouse.
Example
Her husband is very supportive of her career.
彼女の夫は彼女のキャリアを非常に支援しています。
C1 noun /hɪpˈnoʊsɪs/

hypnosis

ヒプノシス
Meaning
A trance-like state of consciousness usually induced by suggestion.
Example
She underwent hypnosis to overcome her fear of flying.
彼女は飛行機恐怖症を克服するためにヒプノシスを受けました。
C1 noun /ˈhed.weɪ/

Headway

進展; 前進; 発展
Meaning
forward movement or progress, especially when this is slow or difficult
Example
Despite the challenges, the research team made significant headway in developing the new vaccine.
挑戦にもかかわらず、研究チームは新しいワクチンの開発において重要な進展を遂げました。
A2 noun ˈhɪs.tər.i

History

歴史
Meaning
The study of past events; a chronological record of events and heritage.
Example
The history of ancient civilizations fascinates scholars.
古代文明の歴史は学者たちを魅了します。
C1 adjective /ˈhɔːltɪŋ/

halting

ためらい
Meaning
slow and hesitant, especially due to lack of confidence
Example
She gave a halting reply during the interview.
彼女は面接中にためらいながら答えました。
C2 noun /ˈhænd ˌrɪŋɪŋ/

hand-wringing

過剰な心配
Meaning
excessive worry or concern expressed in a visible or dramatic way.
Example
There was much hand-wringing over the political crisis.
政治危機について多くの心配がありました。
C1 noun /ˌhoʊmiˈɑːpəθi/

homeopathy

ホメオパシー
Meaning
a system of alternative medicine based on treating diseases with highly diluted substances
Example
He believes in homeopathy for treating common colds.
彼は風邪を治すためにホメオパシーを信じています。
B1 noun /ˈhaʊswaɪf/

housewife

主婦
Meaning
a married woman who manages a household and whose main occupation is caring for her family and home
Example
She chose to work as a housewife while raising her children.
彼女は子どもを育てるために主婦になることを選びました。
C1 verb /ˈheɪsən/

hasten

急ぐ
Meaning
To move or act quickly; to cause something to happen sooner.
Example
He hastened to finish his work before the deadline.
彼は締め切り前に仕事を終わらせるために急いだ。
C1 noun /hɪˈstɪəriə/

hysteria

Meaning
An uncontrollable outburst of emotion or fear, often characterized by irrational behavior.
Example
The crowd was in a state of hysteria during the concert.
A2 verb /hɪt/

hit

打つ
Meaning
to strike; to reach a target
Example
He hit the ball with the bat.
彼はバットでボールを打った。
B2 noun /ˈhaʊs boʊt/

House boat

ハウスボート
Meaning
a boat that has been designed or modified to be used primarily as a home
Example
They spent their vacation on a beautiful house boat in the lake.
彼らは湖の美しいハウスボートで休暇を過ごしました。
C2 adjective /ˌhɑːrdˈbɪtn̩/

hard-bitten

頑固で経験豊富
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.
その経験豊富な探偵は犯罪現場で驚きの兆候を見せませんでした。
B1 adverb /ˌhæfˈweɪ/

halfway

途中で
Meaning
at or to a point equal in distance between two points
Example
We met halfway between the two towns.
私たちは二つの町の間の途中で会いました。
B2 noun /həˈraɪ.zənz/

horizons

地平線
Meaning
The limit of a person's mental perception, experience, or interest.
Example
The telescope opens new horizons for astronomy.
望遠鏡は天文学の新しい地平線を開きます。
B2 noun /ˈhɑːrd.ʃɪp/

Hardship

困難、苦難
Meaning
severe suffering or privation; difficulty or distress
Example
Despite facing many hardships during the war, the family remained united and hopeful.
戦争中に多くの困難に直面したにもかかわらず、家族は団結して希望に満ちていました。
C2 adjective /hɛkˈsæŋɡjələr/

hexangular

六角形の
Meaning
Having six angles or corners.
Example
The artist designed a hexangular frame for the mirror.
アーティストは鏡のために六角形のフレームをデザインしました。
C1 noun /ˈhɪp.ə.krɪt/

Hypocrite

偽善者; 嘘つき; 偽りの人
Meaning
a person who acts in contradiction to their stated beliefs or feelings; a pretender
Example
Don't be a hypocrite by demanding honesty from others while lying yourself.
他人に誠実を求めて自分は嘘をつくのは偽善者だ。
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.
A1 noun /ˈaʊər/

hour

Meaning
A period of time equal to 60 minutes.
Example
The meeting lasted for two hours.
B2 noun /ˌhez.ɪˈteɪ.ʃən/

Hesitation

ためらい; 躊躇
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.
一瞬のためらいの後、彼女は会社からの挑戦的な仕事のオファーを受け入れることに決めました。
B2 noun ˈhæb.ɪ.tæts

habitats

生息地
Meaning
The natural home or environment of an animal, plant, or other organism.
Example
Scientists envision habitats on the Moon.
科学者たちは月面にハビタッツを想像しています。
B1 noun /ˈhɑːrdˌwɛr/

hardware

ハードウェア
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.
会社はパフォーマンスを向上させるためにコンピュータのハードウェアをアップグレードしました。
C2 noun /ˈhæŋ.kər/

Hanker

渇望, 欲求
Meaning
a feeling of yearning or craving; a strong desire for something
Example
After years abroad, she developed a deep hanker for her homeland's traditional cuisine.
海外で何年も過ごした後、彼女は故郷の伝統的な料理への深い渇望を抱きました。
C1 noun /ˈhɒməˌfoʊn/

homophone

同音異義語
Meaning
A word that is pronounced the same as another word but differs in meaning, and often spelling.
Example
The words 'pair' and 'pear' are homophones.
「pair」と「pear」の単語は同音異義語です。
C2 noun /ˈhɛptəˌɡɒn/

heptagon

七角形
Meaning
A polygon with seven sides and seven angles.
Example
The math teacher drew a heptagon on the board.
数学の先生は黒板にヘプタゴンを描きました。
C1 noun ˈhɛroʊˌɪzəm

heroism

英雄主義
Meaning
Great bravery; the qualities or attributes of a hero.
Example
The heroism of freedom fighters inspires the nation.
自由の戦士たちの英雄主義は国を鼓舞します。
B1 verb /haɪər/

hire

雇う
Meaning
to employ someone for wages; to rent or engage services
Example
The company will hire new employees next month.
その会社は来月新しい従業員を雇う予定です。
B2 noun /hɔrn/

Horn

角
Meaning
a hard pointed projection on the head of certain animals; a musical instrument
Example
The rhinoceros used its horn to defend itself.
サイは自分を守るために角を使った。
B2 noun /hɪˈstɔːriən/

historian

歴史学者
Meaning
a person who studies or writes about history
Example
The historian gave a lecture on ancient civilizations.
歴史学者は古代文明について講義を行いました。
B2 adjective /ˈhjuː.mɪd/

Humid

湿気のある; 湿った
Meaning
containing moisture; damp; moist;
Example
The humid climate makes it feel hotter than it actually is.
湿度の高い気候は、実際よりも暑さを感じさせます。
C1 verb /hiːd/

heed

注意を払う
Meaning
to pay attention to; to take notice of
Example
You should heed the teacher's advice.
あなたは先生のアドバイスに耳を傾けるべきです。
B2 noun /haɪˈdreɪʃən/

hydration

身体組織に適切な量の液体を提供するプロセス。
Meaning
The process of providing an adequate amount of liquid to bodily tissues.
Example
Proper hydration is essential for maintaining body functions.
適切な水分補給は、体の機能を維持するために重要です。
C1 noun (plural) /ˈhɪntərlændz/

hinterlands

辺境地
Meaning
Plural of hinterland; remote or less developed regions.
Example
Explorers traveled deep into the hinterlands of the country.
探検家たちはその国の辺境地に深く旅しました。
B1 adjective /ˈhɑːrmfəl/

Harmful

有害な
Meaning
causing or likely to cause harm; damaging
Example
Smoking is harmful to your health.
喫煙は健康に有害です。
C1 adverb /ˈheɪs.tɪ.li/

Hastily

急いで
Meaning
in a hurried or rushed manner; quickly and carelessly
Example
She hastily packed her bags before leaving for the airport.
彼女は空港に行く前に急いでバッグを詰めた。
B2 adjective /hɪˈspænɪk/

hispanic

ヒスパニック / スペイン語を話す
Meaning
relating to Spain or Spanish-speaking countries, especially Latin America.
Example
She studies Hispanic culture and language.
彼女はヒスパニック文化と言語を学んでいます。
B2 noun /ˈhaɪəˌrɑːrki/

hierarchy

階層
Meaning
A system in which people or things are arranged in levels of importance or authority.
Example
The corporate hierarchy determines who makes the final decision.
企業の階層は、最終決定を誰が行うかを決定します。
C2 noun /hæp/

hap

運, 幸運, 偶然
Meaning
luck, fortune, or chance occurrence
Example
By sheer hap, he discovered the old letter hidden in the drawer.
偶然にも、彼は引き出しの中に隠された古い手紙を発見しました。
B1 verb /ˈhaɪˌlaɪt/

highlight

強調する
Meaning
to emphasize or make something stand out
Example
The teacher highlighted the most important points in the text.
先生はテキストで最も重要な点をハイライトしました。
C2 adjective /həˈrɛtɪkəl/

heretical

異端的な
Meaning
Relating to or characterized by departure from accepted beliefs or standards, especially in religion.
Example
The priest condemned the book as heretical.
神父はその本を異端的だとして非難した。
C1 adverb/noun /ˌhɪərˈæftər/

hereafter

これから / 来世
Meaning
from now on; in the future; also refers to life after death.
Example
Hereafter, all reports must be submitted electronically.
これからは、すべての報告書は電子的に提出しなければならない。
A1 noun, verb /hɛd/

head

頭 / リーダー
Meaning
The upper part of the human body or to lead or be in charge of something.
Example
She turned her head to look out the window.
彼女は窓の外を見るために頭を回した。