語彙集

英単語辞書 | 単語の意味、定義、例文

noun
/ˌɒp.əˈtjuː.nə.ti/
チャンス (chansu)

A favorable chance or set of circumstances that makes it possible to do something.

"She seized the opportunity to study abroad."

"彼女は海外で勉強するチャンスをつかんだ。" (Kanojo wa kaigai de benkyō suru chansu o tsukanda.)
opportunities definition card — visual illustration of the meaning
noun
ˌɒpəˈtjuːnɪtiz
機会 (kikai)

A set of circumstances that makes it possible to do something.

"Investing in emerging markets provides new opportunities."

"新興市場への投資は新しい機会を提供します。" (Shinkō shijō e no tōshi wa atarashī kikai o teikyō shimasu.)
noun
/ˌɑːpərˈtuːnɪst/
機会主義者 (kikai shugi-sha)

A person who takes advantage of situations for personal gain, often disregarding principles.

"He is seen as an opportunist who always puts his interests first."

"彼は常に自分の利益を第一に考える機会主義者として見られています。" (Kare wa tsuneni jibun no rieki o daiichi ni kangaeru kikai shugi-sha toshite mirarareteimasu.)
noun
/ˌɑːpərˈtuːnɪzəm/
機会主義 (kikai shugi)

The practice of taking advantage of opportunities regardless of principles or ethics.

"His decision was driven by opportunism, not values."

"彼の決定は、価値観ではなくオポチュニズムに動機づけられていました。" (Kare no kettei wa, kachikan de wa naku opochnizumu ni doukizukerareteimashita.)
adjective
/ˌɑːpərˈtuːn/
適切な瞬間 (tekisetsu na shunkan)

Happening at a suitable or convenient time.

"She arrived at an opportune moment to help."

"彼女は助けるために適切な瞬間に到着しました。" (Kanojo wa tasukeru tame ni tekisetsu na shunkan ni touchakushimashita.)
noun
/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.)
noun
/əˈpɪnjən/
意見 (iken)

A belief, judgment, or viewpoint about something, not necessarily based on fact.

"Everyone is entitled to their own opinion."

"誰もが自分の意見を持つ権利を持っています。" (dare mo ga jibun no iken o motsu kenri o motteimasu.)
verb
/oʊˈpaɪn/
意見を述べる (iken o noberu)

to express an opinion or belief

"The professor opined that the policy would fail."

"教授はその政策が失敗するだろうと述べました。" (Kyoju wa sono seisaku ga shippai suru darou to nobemashita.)
noun
/ˈoʊpiət/

a drug containing opium or its derivatives, used to relieve pain or cause sleep

"The doctor prescribed an opiate to relieve the patient's pain."

noun
/ˌɒpəˈrɛtə/
軽いオペラ (karui opera)

a short opera with light and humorous themes

"The theater staged a famous operetta by Gilbert and Sullivan."

"劇場はギルバートとサリヴァンの有名な軽いオペラを上演しました。" (Gekijō wa Girubāto to Sarivan no yūmei na karui opera o jōen shimashita.)
noun
/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.)
adjective
/ˈɒpərətɪv/
操作的 (sousateki)

functioning, having effect, or relating to a secret agent or worker

"The new law is now operative across the country."

"新しい法律は今、国内全体で施行されています。" (Atarashii houritsu wa ima, kokunai zentai de shikou sareteimasu.)
operational definition card — visual illustration of the meaning
adjective
/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.)
noun
/ˌɒpəˈreɪʃən/
手術 (shujutsu)

an act or process of functioning or operating

"The hospital performed a successful operation."

"病院は成功した手術を行いました。" (Byouin wa seikou shita shujutsu o okonai mashita.)
verb
/ˈɒpəreɪtɪŋ/
運営する (un'ei suru)

to control or manage the functioning of something

"The company has been operating in this market for five years."

"その会社はこの市場で5年間運営されています。" (Sono kaisha wa kono shijou de go-nenkan un'ei sareteimasu.)
operate definition card — visual illustration of the meaning
verb
/ˈɑːpəˌreɪt/
操作する (sousa suru)

to control the functioning of a machine, system, or business

"She learned how to operate the new machine."

"彼女は新しい機械を操作する方法を学びました。" (Kanojo wa atarashii kikai wo sousa suru houhou wo manabimashita.)
noun
/ˈɒpərə/
オペラ (opera)

a dramatic performance in which the actors sing most of their lines

"We watched a beautiful opera at the theater last night."

"昨晩、劇場で美しいオペラを観ました。" (Sakuban, gekijō de utsukushī opera o mimashita.)
adverb
/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.)
noun
/ˈoʊpənɪŋ/
開店 (kaiten)

an act or instance of beginning something

"The opening of the new store was a huge success."

"新しい店のオープニングは大成功でした。" (Atarashī mise no ōpuningu wa daiseikō deshita.)
noun
/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.)
noun
/ˈɒktɪv/

A series of eight musical notes, or the interval between one musical pitch and another with double its frequency.

"The singer's voice could easily reach the higher octave."

noun
/ɒkˈteɪvoʊ/
オクターヴォ (紙を8つに折りたたんで作られた本のサイズ) (okutāvo)

A size of book page resulting from folding a sheet of paper into eight leaves (sixteen pages).

"The old library contained rare octavo editions of Shakespeare."

"古い図書館にはシェイクスピアの珍しいオクターヴォ版がありました。" (Furui toshokan ni wa Sheikusupia no mezurashī okutāvo-ban ga arimashita.)
noun
/ɒkˈtoʊbər/
10月 (juugatsu)

the tenth month of the year in the Gregorian calendar

"The weather becomes cooler in October."

"10月になると天気が涼しくなります。" (juugatsu ni naru to tenki ga suzushiku narimasu)
noun
/ˌɒktədʒəˈnɛəriən/
80歳代の人 (80-sai dai no hito)

A person who is between 80 and 89 years old.

"The octogenarian still jogs every morning to stay healthy."

"そのオクトジェネリアンは毎朝健康を維持するためにジョギングをしています。" (Sono okutojenerian wa mai asa kenkou o iji suru tame ni jogingu o shiteimasu.)
adjective
/ˈɒkjʊlər/
眼科の (ganka no)

Relating to the eye or vision.

"The patient was referred to a specialist for ocular treatment."

"患者は眼科専門医に紹介されました。" (Kanja wa ganka senmon'i ni shōkai saremashita.)
noun
/ˈɒkjʊlɪst/
眼科医 (genka-i)

An old-fashioned term for an eye doctor or ophthalmologist.

"The village oculist was known for treating various eye diseases."

"村のオキュリストは、さまざまな目の病気を治療することで知られていました。" (Mura no okyuristo wa, samazama na me no byōki o chiryō suru koto de shirarete imashita.)
adjective
/ɒd/
奇妙 (kimyou)

different from what is usual or expected; strange or peculiar

"He has some odd habits that surprise everyone."

"彼は皆を驚かせる奇妙な習慣を持っています。" (Kare wa mina wo odokaseru kimyou na shuukan wo motteimasu.)
noun
/ˈɒdəti/
奇異 (kii)

Something strange or unusual.

"The bright pink building was an oddity in the small town."

"その明るいピンクの建物は小さな町での奇異な存在でした。" (Sono akarui pinku no tatemono wa chiisana machi de no kii na sonzai deshita.)
adverb
/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)
noun
/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.)
noun
/oʊd/
オード (ōdo)

a lyrical poem, often expressing praise or strong emotions

"The poet wrote an ode to the beauty of nature."

"詩人は自然の美に対するオードを書いた。" (Shijin wa shizen no bi ni taisuru ōdo o kaita.)
adjective
/ˈoʊdiəs/
忌まわしい (imawashii)

extremely unpleasant or repulsive

"The dictator was remembered for his odious crimes."

"その独裁者は彼の忌まわしい犯罪で記憶されました。" (Sono dokusaisha wa kare no imawashii hanzai de kioku saremashita.)
noun
/ˈoʊdiəm/
嫌悪 (ken'o)

general or widespread hatred or disgust directed toward someone as a result of their actions

"The scandal brought public odium on the corrupt minister."

"スキャンダルは腐敗した大臣に対する公衆の嫌悪を引き起こした。" (Sukyandaru wa fuhai shita daijin ni taisuru kōshū no ken'o o hikiokoshita.)
adjective
/ˌoʊdəˈrɪfərəs/
芳香のある (hōkō no aru)

having or giving off a smell, especially a strong or pleasant one

"The garden was filled with odoriferous flowers."

"庭は芳香のある花でいっぱいでした。" (Niwa wa hōkō no aru hana de ippai deshita.)
adjective
/ˈoʊdərəs/
臭い (nikui)

having or giving off a smell, often unpleasant

"The odorous garbage had to be taken out immediately."

"その臭いゴミはすぐに出さなければならなかった。" (Sono nikui gomi wa sugu ni dasanakereba naranakatta.)
verb
/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.)
adjective/adverb
/ˌɒfˈhænd/
軽率 (keisotsu)

Without previous thought or preparation; casual and sometimes dismissive.

"She gave an offhand reply to his serious question."

"彼女は彼の真剣な質問に対して、軽率な返答をした。" (Kanojo wa kare no shinken na shitsumon ni taishite, keisotsu na hentou wo shita.)
noun
/ˈɒfərtɔːri/
奉納 (hounou)

The part of a religious service when offerings are collected; the offering itself.

"The offertory was taken during the Sunday service."

"日曜日の礼拝中に奉納が取られました。" (Nichiyoubi no reihai chuu ni hounou ga toraremashita.)
noun
/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.)
offer definition card — visual illustration of the meaning
verb
/ˈɔːfər/
提供する (teikyō suru)

to present or give something to someone

"She offered him a gift for his birthday."

"彼女は彼に誕生日のためにプレゼントを提供した。" (Kanojo wa kare ni tanjōbi no tame ni purezento o teikyō shita.)
adjective
/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.)
noun
/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.)
noun
/əˈfɛndər/
犯罪者 (hanzai-sha)

a person who commits a crime or does something wrong

"The police caught the offender quickly."

"警察はすぐに犯罪者を捕まえました。" (Keisatsu wa sugu ni hanzai-sha o tsukamaemashita.)
adjective
/ˌɔːfˈkiː/
外れた音 (hazureta oto)

out of tune; not in accordance with expected standards

"The singer was slightly off-key during the performance."

"歌手はパフォーマンス中に少し外れた音だった。" (Kashu wa pafōmansu chū ni sukoshi hazureta oto datta.)
odyssey definition card — visual illustration of the meaning
noun
/ˈɑːdəsi/
長い旅 (nagai tabi)

a long, adventurous journey; a series of experiences

"Her career has been an odyssey of challenges and achievements."

"彼女のキャリアは挑戦と成果の長い旅でした。" (Kanojo no kyaria wa chōsen to seika no nagai tabi deshita.)
preposition
/ʌv/
(no)

expressing the relationship between a part and a whole

"The book is on the table, in front of the window."

"本はテーブルの上にあり、窓の前にあります。" (Hon wa tēburu no ue ni ari, mado no mae ni arimasu.)
adverb
/ɔːf/
オフ (ofu)

away from a place, position, or time; not functioning

"He turned off the light before leaving the room."

"彼は部屋を出る前に電気をオフにしました。" (Kare wa heya wo deru mae ni denki wo ofu ni shimashita.)
adjective
/ˈɒf.biːt/
風変わり (fūgawari)

Unusual, unconventional, or different from the norm.

"She has a very offbeat sense of humor."

"彼女はとても風変わりなユーモアを持っています。" (kanojo wa totemo fūgawari na yūmoa o motte imasu.)
noun
/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.)
noun
/ˈɒktəɡən/
八角形 (hakkakukei)

A polygon with eight sides and eight angles.

"The stop sign is shaped like an octagon."

"ストップサインは八角形をしています。" (Sutoppu sain wa hakkakukei wo shiteimasu.)