語彙集

英単語辞書 | 単語の意味、定義、例文

nutrient definition card — visual illustration of the meaning
noun B2
/ˈnjuː.tri.ənt/
栄養素 (eiyouso)

A substance that provides nourishment essential for growth and the maintenance of life.

"Vegetables are rich in essential nutrients."

"野菜は重要な栄養素が豊富です。" (Yasai wa juuyou na eiyouso ga houfu desu.)
nutrition definition card — visual illustration of the meaning
noun B2
/njuːˈtrɪʃ.ən/
栄養 (eiyou)

The process of providing or obtaining the food necessary for health and growth.

"Good nutrition is vital for a healthy life."

"良い栄養は健康的な生活にとって重要です。" (Yoi eiyou wa kenkou-teki na seikatsu ni totte juuyou desu.)
Nutritious definition card — visual illustration of the meaning
adjective B2
/njuːˈtrɪʃ.əs/
栄養のある (eiyou no aru)

Providing nourishment; health-giving.

"Milk is a nutritious drink for children."

"牛乳は子供にとって栄養のある飲み物です。" (Gyunyu wa kodomo ni totte eiyou no aru nomimono desu.)
oak definition card — visual illustration of the meaning
noun B2
/oʊk/
オークの木 (ōku no ki)

a large tree that produces acorns and has strong, hard wood

"The old oak tree provided shade for the entire yard."

"古いオークの木は庭全体に日陰を提供しました。" (furui ōku no ki wa niwa zentai ni hikage o teikyō shimashita.)
noun B2
/ˈoʊtˌmiːl/
オートミール (ootomiiru)

A type of porridge made from ground oats, often eaten for breakfast.

"She eats a bowl of oatmeal every morning for breakfast."

"彼女は毎朝、朝食にオートミールを一杯食べます。" (Kanojo wa mai asa, choushoku ni ootomiru o ippai tabemasu.)
Obedience definition card — visual illustration of the meaning
noun B2
/oʊˈbiː.di.əns/
服従 (fukujū)

compliance with an order, request, or law; submission to authority

"Children should show obedience to their parents."

"子供たちは両親に従うべきです。" (Kodomotachi wa ryōshin ni shitagau beki desu.)
obesity definition card — visual illustration of the meaning
noun B2
/oʊˈbiːsəti/
肥満 (himan)

The condition of being very overweight, especially to a degree that it is harmful to health.

"Obesity is a growing health problem in many countries."

"肥満は多くの国々で増加している健康問題です。" (Himan wa ooku no kuniguni de zouka shiteiru kenkou mondai desu.)
Objection definition card — visual illustration of the meaning
noun B2
/əbˈdʒɛkʃən/
異議 (igi)

an expression or feeling of disapproval or opposition

"The lawyer raised an objection during the trial."

"弁護士は裁判中に異議を申し立てました。" (Bengoshi wa saiban-chuu ni igi wo moushitatemashita.)
Obligation definition card — visual illustration of the meaning
noun B2
/ˌɒblɪˈɡeɪʃən/
義務 (gimu)

a duty or commitment

"You have an obligation to follow the rules."

"あなたは規則に従う義務があります。" (Anata wa kisoku ni shitagau gimu ga arimasu.)
oblige definition card — visual illustration of the meaning
verb B2
/əˈblaɪdʒ/
助ける (tasukeru)

to do something as a favor or kindness for someone

"She obliged by helping him with the task."

"彼女はそのタスクを手伝うことで喜んでくれました。" (Kanojo wa sono tasuku wo tetsudau koto de yorokonde kuremashita.)
adjective, verb B2
/əbˈskjʊr/
不明確 (fumeikaku)

Not clearly expressed or understood; to make something difficult to see or understand.

"The meaning of the poem was obscure to most readers."

"詩の意味はほとんどの読者には不明確でした。" (Shi no imi wa hotondo no dokusha ni wa fumeikaku deshita.)
Observation definition card — visual illustration of the meaning
noun B2
/ˌɒbzəˈveɪʃən/
観察 (kansatsu)

the action or process of observing something carefully in order to gain information

"The scientist made an observation during the experiment."

"科学者は実験中に観察を行いました。" (Kagakusha wa jikken-chuu ni kansatsu o okonaimashita.)
observations definition card — visual illustration of the meaning
noun B2
/ˌɒb.zəˈveɪ.ʃənz/
観察 (kansatsu)

The action or process of observing something carefully.

"Observations of distant galaxies provide new insights."

"遠くの銀河の観察は新たな洞察を提供します。" (Tōku no ginga no kansatsu wa aratana dōsatsu o teikyō shimasu.)
observed definition card — visual illustration of the meaning
verb B2
əbˈzɜːrvd
祝う (iwau)

To celebrate or keep a religious or other festival.

"The day is observed annually to raise awareness."

"その日は毎年意識を高めるために祝われます。" (Sono hi wa mainen ishiki o takameru tame ni iwaremasu.)
observer definition card — visual illustration of the meaning
noun B2
/əbˈzɜːvər/
観察者 (kansatsusha)

a person who watches or notices something

"The observer took notes during the meeting."

"観察者は会議中にメモを取った。" (Kansatsusha wa kaigi chū ni memo o totta.)
obsession definition card — visual illustration of the meaning
noun B2
/əbˈsɛʃən/
執着 (shūchaku)

An idea, thought, or concern that continually preoccupies or intrudes on a person's mind.

"His obsession with success drove him to work day and night."

"成功への執着が彼を昼夜働かせた。" (Seikou e no shūchaku ga kare o chūya hatarakaseta.)
obtain definition card — visual illustration of the meaning
verb B2
/əbˈteɪn/
得る (eru)

to get, acquire, or secure something

"She managed to obtain a scholarship for her studies."

"彼女は学業のために奨学金を得ることができました。" (Kanojo wa gakugyō no tame ni shōgakukin o eru koto ga dekimashita.)
noun B2
/ˈɒkjʊpənt/
乗客 (jōkyaku)

A person who resides in or is present in a house, vehicle, seat, or place.

"The car had three occupants at the time of the accident."

"事故の時、車には三人の乗客がいました。" (Jiko no toki, kuruma ni wa sannin no jōkyaku ga imashita.)
occupied definition card — visual illustration of the meaning
adjective; verb (past participle) B2
/ˈɒkjʊpaɪd/
使用中の;占領された (shiyouchuu no; senryou sareta)

being in use or taken; filled or lived in; controlled or held by force

"The room is occupied, so please wait outside."

"その部屋は使用中なので、外で待ってください。" (Sono heya wa shiyouchuu nanode, soto de matte kudasai)
occupy definition card — visual illustration of the meaning
verb B2
/ˈɒkjʊpaɪ/
占拠する (senkyo suru)

to take control or possession of a place or thing

"The workers will occupy the building until the renovations are completed."

"労働者たちは改修が完了するまでその建物を占拠する。" (roudousha tachi wa kaishu ga kanryo suru made sono tatemono o senkyo suru.)
oddly definition card — visual illustration of the meaning
adverb B2
/ˈɒdli/
奇妙に (kimyouni)

in a strange or unusual way; unexpectedly

"Oddly, he didn’t seem upset by the bad news."

"奇妙に、彼は悪い知らせにも動揺していなかった。" (Kimyouni, kare wa warui shiraseni mo douyou shite inakatta)
odds definition card — visual illustration of the meaning
noun B2
/ɒdz/
確率 (kakuritsu)

the likelihood or probability of something happening; chances for or against something

"The odds of winning the lottery are very low."

"宝くじに当選する確率は非常に低いです。" (Takarakuji ni tousen suru kakuritsu wa hijou ni hikui desu.)
Odour definition card — visual illustration of the meaning
noun B2
/ˈoʊ.dər/
臭い (nikui)

a distinctive smell, especially an unpleasant one

"The odour of fresh bread filled the kitchen."

"新鮮なパンの臭いがキッチンに広がった。" (Shinsen na pan no nikui ga kicchin ni hirogatta.)
Offence definition card — visual illustration of the meaning
noun B2
/əˈfens/
違反; 犯罪 (ihan; hanzai)

a breach of law or rule; an annoyance or resentment

"Stealing is a serious offence punishable by law."

"窃盗は法律で罰せられる重大な違反です。" (Settō wa hōritsu de bassareru jūdaina ihan desu.)
offend definition card — visual illustration of the meaning
verb B2
/əˈfɛnd/
侮辱する (bujoku suru)

to cause someone to feel upset, insulted, or annoyed

"She didn’t mean to offend anyone with her remarks."

"彼女は自分のコメントで誰かを怒らせるつもりはなかった。" (Kanojo wa jibun no komento de dareka o okoraseru tsumori wa nakatta.)
offense definition card — visual illustration of the meaning
noun B2
/əˈfɛns/
犯罪 (hanzai)

an illegal act; a crime

"The offense was committed in broad daylight."

"その罪は昼間に犯されました。" (Sono zai wa hiruma ni okasaremashita.)
Offensive definition card — visual illustration of the meaning
adjective B2
/əˈfɛnsɪv/
攻撃的 (kougekiteki)

Causing hurt, anger, or annoyance; also relating to attacking in sports or war.

"His offensive remarks upset everyone at the meeting."

"彼の攻撃的な発言は、会議にいた全員を不快にさせました。" (Kare no kougekiteki na hatsugen wa, kaigi ni ita zen'in o fukai ni sasemashita.)
offering definition card — visual illustration of the meaning
noun B2
/ˈɒfərɪŋ/
オファリング (ofaringu)

something that is given, especially as a gift or contribution

"The company’s latest offering is an eco-friendly car."

"会社の最新のオファリングは、エコフレンドリーな車です。" (Kaisha no saishin no ofaringu wa, ekofurendorī na kuruma desu.)
officially definition card — visual illustration of the meaning
adverb B2
/əˈfɪʃəli/
公式に (kōshiki ni)

in a formal or authorized way

"The building was officially opened by the mayor."

"その建物は市長によって公式に開かれました。" (Sono tatemono wa shichō ni yotte kōshiki ni hirakaremashita.)
adjective B2
/ˈɔɪl.i/
油っぽい; 油で覆われた; 脂っこい (aburappoi; abura de ōwareta; aburakkoi)

covered with oil; containing oil; greasy

"Her oily skin needs special care."

"彼女の油っぽい肌は特別なケアが必要です。" (Kanojo no aburappoi hada wa tokubetsu na kea ga hitsuyō desu.)
omit definition card — visual illustration of the meaning
verb B2
/oʊˈmɪt/
省略する (shōryaku suru)

to leave out or exclude; to fail to include something

"Please don't omit any important details from your report."

"レポートから重要な詳細を省略しないでください。" (Repōto kara jūyō na shōsai o shōryaku shinai de kudasai.)
one-third definition card — visual illustration of the meaning
noun B2
/wʌn θɜːd/
三分の一 (sanbun no ichi)

one part of something that is divided into three equal parts

"One-third of the class was absent today."

"クラスの三分の一が今日は欠席でした。" (Kurasu no sanbun no ichi ga kyō wa kesseki deshita.)
ongoing definition card — visual illustration of the meaning
adjective B2
/ˈɒnɡəʊɪŋ/
進行中 (shinkouchuu)

continuing; still in progress

"The ongoing project will finish next month."

"進行中のプロジェクトは来月終了します。" (Shinkouchuu no purojekuto wa raigetsu shūryō shimasu.)
Openly definition card — visual illustration of the meaning
adverb B2
/ˈəʊpənli/
率直に (sotchoku ni)

in a way that is not secret or hidden

"He spoke openly about his past mistakes."

"彼は自分の過去の過ちについて率直に話した。" (Kare wa jibun no kako no ayamachi ni tsuite sotchoku ni hanashita.)
operational definition card — visual illustration of the meaning
adjective B2
/ˌɒpəˈreɪʃənl/
オペレーショナル (operational)

related to or engaged in the operation of something

"The team is ready for the operational phase of the project."

"チームはプロジェクトのオペレーショナルフェーズの準備ができています。" (Chīmu wa purojekuto no operēshonaru fēzu no junbi ga dekiteimasu.)
operator definition card — visual illustration of the meaning
noun B2
/ˈɒpəreɪtər/
オペレーター (operetā)

a person who operates equipment, a business, or controls something

"The machine operator ensured that everything ran smoothly."

"機械オペレーターは、すべてがスムーズに動作することを確認しました。" (Kikai operetā wa, subete ga sumūzu ni dōsa suru koto o kakunin shimashita.)
Opponent definition card — visual illustration of the meaning
noun B2
/əˈpoʊnənt/
幸せ (shiawase)

A person who competes against or disagrees with another.

"The boxer defeated his opponent in the final round."

"彼女は賞を受け取ったとき、幸せを隠すことができませんでした。" (kanojo wa shō o uketotta toki, shiawase o kakusu koto ga dekimasen deshita.)
oppose definition card — visual illustration of the meaning
verb B2
/əˈpəʊz/
反対する (hantai suru)

to disagree with or fight against something

"He opposed the new policy at the meeting."

"彼は会議で新しい政策に反対した。" (Kare wa kaigi de atarashī seisaku ni hantai shita.)
opposed definition card — visual illustration of the meaning
adjective B2
/əˈpəʊzd/
反対の (hantai no)

being against or in disagreement with something

"She is strongly opposed to animal testing."

"彼女は動物実験に強く反対しています。" (Kanojo wa dōbutsu jikken ni tsuyoku hantai shiteimasu.)
opposition definition card — visual illustration of the meaning
noun B2
/ˌɒpəˈzɪʃən/
反対 (hantai)

the action of opposing or resisting something

"The opposition to the new law was strong."

"新しい法律に対する反対は強かった。" (Atarashī hōritsu ni taisuru hantai wa tsuyokatta.)
opt definition card — visual illustration of the meaning
verb B2
/ɒpt/
選ぶ (erabu)

to choose or decide to do something instead of something else

"Many students opt to study abroad for better opportunities."

"多くの学生がより良い機会のために海外で学ぶことを選択します。" (Ooku no gakusei ga yori yoi kikai no tame ni kaigai de manabu koto o sentaku shimasu.)
noun B2
/ɒpˈtɪʃən/
眼鏡技師 (megane gishi)

A person who makes or sells glasses and contact lenses.

"The optician adjusted my new glasses to fit better."

"オプティシャンは私の新しい眼鏡をより良くフィットするように調整しました。" (Oputishan wa watashi no atarashī megane o yori yoku fitto suru yō ni chōsei shimashita.)
optimal definition card — visual illustration of the meaning
adjective B2
/ˈɒptɪməl/
最適 (saiteki)

Best or most favorable; ideal.

"This diet plan provides the optimal balance of nutrients."

"このダイエットプランは栄養素の最適なバランスを提供します。" (Kono daietto puran wa eiyōso no saiteki na baransu o teikyō shimasu.)
optimal temperature definition card — visual illustration of the meaning
adjective + noun B2
ˈɒptɪməl ˈtempərətʃər
最適温度 (saiteki ondo)

The best or most favorable temperature for a particular purpose

"Winter provides optimal temperature for farming."

"冬は農業に最適な温度を提供します。" (Fuyu wa nōgyō ni saiteki na ondo o teikyō shimasu.)
optimism definition card — visual illustration of the meaning
noun B2
/ˈɒptɪmɪzəm/
楽観主義 (rakkan shugi)

Hopefulness and confidence about the future.

"Her optimism kept the team motivated during tough times."

"彼女の楽観主義は困難な時期にチームを励ましました。" (Kanojo no rakkan shugi wa konnan na jiki ni chiimu wo hagemashita.)
Optimist definition card — visual illustration of the meaning
noun B2
/ˈɒptɪmɪst/

A person who tends to be hopeful and confident about the future or the success of something.

"Even in tough times, she remained an optimist."

optimistic definition card — visual illustration of the meaning
adjective B2
/ˌɑːp.təˈmɪs.tɪk/
楽観的 (rakkan-teki)

hopeful and confident about the future

"She is optimistic about the success of her new project."

"彼女は新しいプロジェクトの成功に楽観的です。" (Kanojo wa atarashī purojekuto no seikō ni rakkan-teki desu.)
adjective B2
/ˈɒpʃənəl/
任意の (nin'i no)

Not required; left to personal choice.

"The dress code for the party is optional."

"パーティーのドレスコードは任意です。" (Pātī no doresu kōdo wa nin'i desu.)
Oral definition card — visual illustration of the meaning
adjective B2
/ˈɔːrəl/
口頭 (kōtō)

Spoken rather than written; relating to the mouth

"The student had to give an oral presentation."

"学生は口頭でプレゼンテーションをしなければなりませんでした。" (Gakusei wa kōtō de purezentēshon o shinakereba narimasen deshita.)
Orang-Outang definition card — visual illustration of the meaning
noun B2
/ɔːˈræŋ.ʊˌtæŋ/
オランウータン (orangūtan)

a large arboreal ape with long reddish hair, long arms, and hooked hands and feet, native to Borneo and Sumatra

"The orangutan swings gracefully through the forest canopy."

"オランウータンは森の樹冠を優雅に渡ります。" (Orangutan wa mori no jūkan o yūga ni watarimasu.)