B2 noun /ˈoʊtˌmiːl/

oatmeal

オートミール

Meaning

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

Example

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。

B2 noun /ˈɒfərɪŋ/

offering

オファリング

Meaning

something that is given, especially as a gift or contribution

Example

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。

C1 noun /ˈɒf.sprɪŋ/

offspring

子孫

Meaning

a person's child or children; an animal's young

Example

The bird carefully fed its offspring.

その鳥は注意深く自分の子孫に餌を与えました。

B2 adjective /ˈɒp.tɪ.məl/

optimal

最適、最良

Meaning

Best or most favorable; the most effective under particular conditions.

Example

The optimal temperature for plant growth is around 25°C.

植物の成長に最適な温度は約25°Cです。

B2 noun /ɔːrˈɡæn.ɪk ˈfɑːr.mɪŋ/

organic farming

有機農業

Meaning

Farming method that avoids synthetic chemicals and fertilizers, using natural methods instead.

Example

Organic farming improves soil health and reduces pollution.

オーガニックファーミングは土壌の健康を改善し、汚染を減らします。

C1 noun /ˌɑːpərˈtuːnɪst/

opportunist

機会主義者

Meaning

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

Example

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。

B2 noun /ˌaʊtˈsaɪdə(r)/

outsider

アウトサイダー

Meaning

a person who is not accepted as a member of a particular group or community

Example

As a new student, she often felt like an outsider at school.

新しい学生として、彼女は学校でよくアウトサイダーのように感じていました。

C2 noun /ɒmˈnɪʃəns/

omniscience

全知

Meaning

the state of knowing everything

Example

The novel's narrator has an air of omniscience, revealing every character's thoughts.

小説の語り手は全知の空気をまとい、すべてのキャラクターの考えを明らかにしている。

C2 noun /ˈɔːrdnəns/

ordnance

軍需品

Meaning

Military supplies including weapons, ammunition, and combat equipment.

Example

The army stored ordnance in a secure facility outside the city.

軍隊は都市外の安全な施設に軍需品を保管していた。

B1 verb /ˈɒpəreɪtɪŋ/

operating

運営する

Meaning

to control or manage the functioning of something

Example

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。

C1 adjective ˈɒptɪmaɪzd

optimized

最適化, 改善, より効率的

Meaning

Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.

Example

The system has been optimized for faster performance.

システムはより速いパフォーマンスのために最適化されました。

A1 pronoun, noun, adjective /wʌn/

one

一

Meaning

the number equivalent to the sum of zero and one; a single person or thing

Example

Only one student answered the question.

ただ一人の学生が質問に答えました。

C1 adjective /ˈɔːrdɪnəl/

ordinal

順序数

Meaning

Relating to the order or position of something in a sequence (first, second, third, etc.).

Example

The ordinal number 'third' indicates position in a sequence.

'第三'の順序数は、順番での位置を示します。

B2 noun /ɑːks/

Ox

雄牛

Meaning

a large strong animal used for pulling heavy loads or plowing fields

Example

The farmer used an ox to plow the field.

農夫は畑を耕すために雄牛を使いました。

C1 adjective /ˌoʊvərˈbɛrɪŋ/

overbearing

押しつけがましい

Meaning

unpleasantly or arrogantly domineering

Example

His overbearing attitude made everyone uncomfortable.

彼の押しつけがましい態度は、みんなを不快にさせた。

C2 noun /ˌɑːpərˈtuːnɪzəm/

opportunism

機会主義

Meaning

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

Example

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。

B2 verb /əˈfend/

offend

侮辱する

Meaning

to cause displeasure or resentment; to hurt someone's feelings

Example

His rude comments offended many people at the meeting.

彼の無礼なコメントは会議で多くの人々を怒らせました。

B2 verb /əˈblaɪdʒ/

oblige

義務付ける

Meaning

to compel or require someone to do something; to help or do a favor

Example

I would be happy to oblige you with the information you need.

必要な情報を提供してお手伝いできれば嬉しいです。

C1 noun /ˈɔːr.ə.tɔːr.i/

oratory

弁論術

Meaning

The art of public speaking; skilled and confident delivery of speeches to an audience.

Example

His exceptional oratory skills won him the debate competition.

彼の卓越した弁論術は、ディベートコンペティションで彼に勝利をもたらしました。

A1 adjective /oʊˈkeɪ/

ok

わかった

Meaning

used to indicate agreement, approval, or understanding

Example

Okay, let's go to the park.

わかった、じゃあ公園に行こう。

B2 adjective /ˈɔː.rəl/

Oral

口頭の; 口に関する

Meaning

spoken rather than written; relating to the mouth

Example

The oral examination will test your speaking skills.

口頭試験はあなたの話す能力をテストします。

C1 adjective /ˌɑːpərˈtuːn/

opportune

適切な瞬間

Meaning

Happening at a suitable or convenient time.

Example

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。

C2 noun /ˈɒksɪdənt/

occident

西洋

Meaning

The countries of the West, especially Europe and America.

Example

The Occident has a long history of philosophical thought.

西洋には長い哲学的思考の歴史があります。

B1 noun /ˈɑb.stə.kəl/

Obstacle

障害物

Meaning

something that blocks or makes progress difficult; a barrier

Example

Bad weather was the main obstacle to our journey.

悪天候が私たちの旅行の最大の障害物でした。

B2 noun /ˈaʊt.breɪk/

Out-break

発生

Meaning

a sudden occurrence or eruption of something, especially disease or violence

Example

The outbreak of flu affected many students in the school.

インフルエンザの流行は学校の多くの生徒に影響を与えた。

A2 adverb; noun /ˌaʊtˈdɔːrz/

outdoors

屋外で

Meaning

outside a building; the natural environment outside

Example

We spent the whole afternoon outdoors enjoying the fresh air.

私たちは午後ずっと屋外で新鮮な空気を楽しみました。

C2 adjective /ˈɔːrnəri/

ornery

気難しい

Meaning

bad-tempered and combative; stubborn

Example

The ornery old man refused to leave his chair.

その気難しい老人は椅子を離れようとしませんでした。

C2 adjective /ˈoʊ.pən ˈhɑrt.ɪd/

Open-hearted

オープンハート; 寛大で誠実; 心温かく受け入れる;

Meaning

Kind and generous; sincere and honest; warmly receptive;

Example

She welcomed the strangers with an open-hearted smile and invited them for dinner.

彼女は見知らぬ人々を心温かい笑顔で迎え、夕食に招待した。

A2 noun /ˈɒm.lət/

Omelet

オムレツ

Meaning

a dish made from beaten eggs cooked in a frying pan and often folded around a filling

Example

She made a cheese omelet for breakfast.

彼女は朝食にチーズオムレツを作った。

C2 adjective /ɒmˈnɪʃ.ənt/

Omniscient

全知の

Meaning

having complete knowledge; all-knowing

Example

The narrator in the novel appears to be omniscient, knowing every character's thoughts.

小説の語り手は全知であるかのようで、すべての登場人物の思考を知っている。

B2 adverb /ˌoʊvərˈnaɪt/

Overnight

一晩で; 突然; 非常に速く

Meaning

during the night; suddenly; very quickly

Example

The city was transformed overnight.

街は一晩で変わった。

C1 adjective /ˌɒstɛnˈteɪʃəs/

ostentatious

見せびらかしの

Meaning

Characterized by a showy or pretentious display intended to impress others.

Example

He wore an ostentatious gold chain to the party.

彼はパーティーで見せびらかしの金のチェーンをしていました。

C1 noun /ˈoʊ.mən/

Omen

未来の良いまたは悪い運命の兆し

Meaning

an event regarded as a sign of future good or bad luck

Example

Many people consider a black cat crossing your path a bad omen.

多くの人々は、黒猫が道を横切ることを悪いオーメンだと考えています。

C1 noun /ˈɔr.i.ənt/

Orient

東洋、特に東アジアの国々

Meaning

the East, especially countries of eastern Asia; to determine one's position or direction

Example

Many spices come from the Orient.

多くの香辛料がオリエントから来ています。

B2 noun /əˈpoʊ.nənt/

Opponent

対戦相手; ライバル

Meaning

a person who disagrees with or resists a proposal or practice; someone who competes against another

Example

The chess player defeated his strongest opponent.

チェスのプレーヤーは最強の対戦相手を倒した。

B2 adjective /ˈɔɪl.i/

Oily

油っぽい; 油で覆われた; 脂っこい

Meaning

covered with oil; containing oil; greasy

Example

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。

A1 adverb /ˈɔːfən/

often

しばしば

Meaning

frequently, many times

Example

I often visit my grandparents on weekends.

私は週末にしばしば祖父母を訪れます。

C1 noun /əˈfen.dər/

Offender

犯罪者; 法律違反者

Meaning

a person who commits an illegal act; someone who breaks the law

Example

The young offender was sentenced to community service.

その若い犯罪者はコミュニティサービスを命じられました。

A2 noun /əˈlɪmpɪks/

olympics

オリンピック競技大会

Meaning

an international sports competition held every four years with athletes from many countries

Example

The Olympics bring athletes from all over the world together.

オリンピックは世界中のアスリートを一堂に集めます。

C1 noun /əˈkɜr.əns/

Occurrence

出来事

Meaning

an instance or event of something happening; the fact of occurring

Example

The occurrence of earthquakes is common in this region.

この地域では地震の出来事が一般的です。

C1 noun /ɒpˈtɒmətri/

optometry

視力検査学

Meaning

The practice or profession of examining the eyes and prescribing corrective lenses.

Example

She studied optometry at the university to become an eye specialist.

彼女は大学でオプトメトリーを学び、眼科専門医になりました。

B2 adjective /əˈpəʊzd/

opposed

反対の

Meaning

being against or in disagreement with something

Example

She is strongly opposed to animal testing.

彼女は動物実験に強く反対しています。

B1 noun /aʊl/

Owl

フクロウ

Meaning

a nocturnal bird of prey with large eyes and a hooked beak

Example

The owl hooted softly in the darkness of the forest.

フクロウは森の暗闇で静かに鳴いた。

C2 noun /ˈɔːfəl/

offal

内臓

Meaning

the internal organs and entrails of an animal used as food; waste parts

Example

The butcher prepared sausages using pork offal.

肉屋は豚の臓物を使ってソーセージを作った。

B2 adjective /ˌoʊvərˈwɛlmɪŋ/

overwhelming

圧倒的

Meaning

Very intense; overpowering.

Example

Large tasks can feel overwhelming.

大きな仕事は圧倒的に感じることがあります。

B1 noun /ˌɒpəˈreɪʃən/

operation

手術

Meaning

an act or process of functioning or operating

Example

The hospital performed a successful operation.

病院は成功した手術を行いました。

C1 noun ˈoʊʃən əˌsɪdɪfɪˈkeɪʃən

ocean acidification

海洋酸性化

Meaning

The ongoing decrease in the pH of the Earth's oceans, caused by the absorption of carbon dioxide from the atmosphere.

Example

Ocean acidification is caused by atmospheric CO2 absorption.

海洋酸性化は、大気中のCO2の吸収によって引き起こされます。

B2 verb /əˈrɪdʒɪneɪt/

originate

起源する

Meaning

to come into existence; to begin; to create or produce

Example

The tradition originated in ancient times.

その伝統は古代の時代に起源を持っています。

C1 noun ˌɒb.səˈlɛs.əns

obsolescence

陳腐化

Meaning

The process of becoming obsolete or outdated and no longer used.

Example

The rapid advancement of technology leads to the obsolescence of old devices.

テクノロジーの急速な進歩は古いデバイスの陳腐化を引き起こします。

B2 noun /ˈaʊt.kʌm/

Outcome

結果; 結末;

Meaning

the result or consequence of an action or situation; the final product

Example

The outcome of the election surprised everyone.

選挙の結果は皆を驚かせました。

C1 adverb /ˈaʊtwədli/

Outwardly

外見上; 表面的に;

Meaning

on the surface; externally; in appearance

Example

Outwardly, he seemed calm, but inside he was nervous.

外見上は落ち着いて見えましたが、内心では緊張していました。

B2 noun /ˈɒkjʊpənt/

occupant

乗客

Meaning

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

Example

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。

B1 adverb /ˈʌðərwaɪz/

Otherwise

さもないと; 他の方法で

Meaning

in a different way; if not; or else; apart from that

Example

Study hard, otherwise you will fail the exam.

一生懸命勉強しなさい、さもないと試験に落ちます。

A2 pronoun /aʊərˈsɛlvz/

ourselves

私たち自身

Meaning

used by the speaker to refer to themselves and one or more others as the object of the verb

Example

We should help ourselves before helping others.

私たちは他の人を助ける前に、自分たち自身を助けるべきです。

C1 verb /ˌoʊvərˈθroʊ/

overthrow

幸せ

Meaning

To remove a leader or government from power, often by force.

Example

The rebels planned to overthrow the corrupt regime.

彼女は賞を受け取ったとき、幸せを隠すことができなかった。

C2 adjective /əˈprəʊ.bri.əs/

opprobrious

侮辱的な

Meaning

Expressing strong criticism or scorn.

Example

He made opprobrious remarks about his opponent.

彼は対戦相手に対して侮辱的な発言をしました。

C2 adjective /ˈɒpjʊlənt/

opulent

豪華な

Meaning

Ostentatiously rich, luxurious, or lavish.

Example

They hosted an opulent wedding with gold decorations.

彼らは金色の装飾を施した豪華な結婚式を開催しました。

A2 preposition /ˈɒntu/

onto

上に

Meaning

moving to a position on the surface of something

Example

She jumped onto the table to get the book.

彼女は本を取るためにテーブルの上に飛び乗った。

C1 noun əˈblɪv.i.ən

oblivion

忘却, 破壊, 消失

Meaning

The state of being unaware or unconscious of what is happening; complete forgetfulness.

Example

His name faded into oblivion over time.

彼の名前は時と共に忘却の中に消えた。

C1 adjective /əbˈzɜːrvənt/

Observant

観察力のある

Meaning

quick to notice things; watchful; attentive

Example

The observant detective noticed every small detail at the crime scene.

観察力のある探偵は犯罪現場のあらゆる小さな詳細に気づきました。

C1 adjective /əbˈtjuːs/

Obtuse

鈍い; 理解が遅い; 愚か

Meaning

annoyingly insensitive or slow to understand; lacking in intelligence or perception

Example

He was being deliberately obtuse about the instructions.

彼は指示に関して意図的に鈍かった。

C1 verb /ˌoʊvərˈrʌn/

overrun

侵略する

Meaning

to spread over or occupy completely; to exceed a limit or time

Example

The garden was overrun with weeds.

庭は雑草に覆われていた。

C1 noun /ˈɒktəɡən/

octagon

八角形

Meaning

A polygon with eight sides and eight angles.

Example

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。

C2 verb /ˈɑːblɪˌɡeɪt/

obligate

強制する

Meaning

to bind legally or morally; to compel someone to do something

Example

The contract obligates the company to provide timely service.

契約は会社にタイムリーなサービスを提供することを義務付けます。

C1 adjective /əˈbliːk/

Oblique

斜め; 対角線; 間接的または回避的

Meaning

slanting; diagonal; indirect or evasive

Example

The artist drew an oblique line across the canvas.

アーティストはキャンバスに斜めの線を描いた。

B1 adjective /əˈkeɪ.ʒən.əl/

Occasional

偶然の

Meaning

occurring infrequently or irregularly; happening from time to time

Example

She enjoys occasional walks in the park.

彼女は公園で偶然の散歩を楽しんでいます。

B1 verb /əˈkɜːr/

occur

発生する

Meaning

to happen or take place; to be found or present

Example

The accident occurred at the intersection during rush hour.

事故はラッシュアワーの交差点で発生しました。

B2 noun /ˈɔr.fən.ɪʒ/

Orphanage

孤児院

Meaning

an institution for the care and education of children who have lost their parents

Example

The charity built a new orphanage for homeless children.

チャリティーはホームレスの子供たちのために新しい孤児院を建てました。

C1 noun /əbˈzɜːrvətɔːri/

observatory

天文台

Meaning

A building equipped for observing astronomical or meteorological events.

Example

The observatory is open to the public on weekends.

天文台は週末に一般公開されています。

B2 adjective /ˌɑːp.təˈmɪs.tɪk/

optimistic

楽観的

Meaning

hopeful and confident about the future

Example

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。

B2 noun ɔːˈɡæn.ɪk fuːdz

organic foods

オーガニック食品

Meaning

Food produced without the use of chemicals such as artificial pesticides, fertilizers, or other artificial agents.

Example

Organic foods are healthier than processed foods.

オーガニック食品は加工食品よりも健康的です。

A2 noun /ˈʌv.ən/

Oven

オーブン

Meaning

an enclosed compartment used for heating, baking, or drying food

Example

She baked cookies in the oven for thirty minutes.

彼女はオーブンで三十分間クッキーを焼きました。

C1 adjective /ˌaʊtˈlændɪʃ/

outlandish

奇妙

Meaning

Looking or sounding bizarre or unfamiliar; strange.

Example

He wore an outlandish costume to the festival.

彼は祭りに奇妙な衣装を着ていました。

A1 verb /ˈoʊpən/

open

開ける

Meaning

to move something so as to allow access; to begin

Example

Please open the door for me.

ドアを開けてください。

C1 noun ˌoʊ.vɚˈɡreɪ.zɪŋ

overgrazing

過剰放牧

Meaning

The practice of allowing livestock to graze to the point of damaging vegetation.

Example

Overgrazing leads to soil erosion and loss of biodiversity.

過剰放牧は土壌の浸食と生物多様性の喪失を引き起こします。

A2 noun /ˈoʊpənɪŋ/

opening

開店

Meaning

an act or instance of beginning something

Example

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。

B2 noun /oʊˈbiː.di.əns/

Obedience

服従

Meaning

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

Example

Children should show obedience to their parents.

子供たちは両親に従うべきです。

C1 adjective /ˈɒm.ɪ.nəs/

Ominous

不吉な; 脅威の

Meaning

giving the impression that something bad will happen; threatening; foreboding

Example

The dark clouds looked ominous before the storm.

嵐の前に、暗い雲は不吉に見えました。

C2 adjective /ˌɔːfˈkiː/

off-key

外れた音

Meaning

out of tune; not in accordance with expected standards

Example

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。

C2 verb /əˈkluːd/

occlude

閉塞する

Meaning

To block or close up an opening or passage.

Example

The pipe was occluded by mineral deposits.

パイプは鉱物の堆積物で閉塞されていました。

C1 noun /ˌɒk.sɪ.dʒɪˈneɪ.ʃən/

oxygenation

酸素供給または治療

Meaning

The process of supplying or treating with oxygen.

Example

Deep breathing exercises improve oxygenation of the body.

深呼吸の練習は身体の酸素供給を改善します。

B2 noun /ˈaʊtbɜːrst/

outburst

感情または活動の突然の爆発

Meaning

a sudden release of strong emotion or activity

Example

She had an angry outburst during the meeting.

会議中に彼女は怒りの爆発をした。

A2 adverb /ˈɒbviəsli/

obviously

明らかに

Meaning

in a way that is easily perceived or understood; clearly

Example

Obviously, he didn’t read the instructions.

もちろん、彼は指示を読まなかった。

B2 adjective /ˈɔː.də.li/

Orderly

整然とした; 系統的な; 平和的な

Meaning

well-organized; systematic; peaceful

Example

Please keep your desk orderly and clean.

デスクを整然とした状態できれいに保ってください。

C1 adjective /ˌoʊvərˈbloʊn/

overblown

誇張された

Meaning

excessively exaggerated or inflated

Example

The controversy was overblown by the media.

メディアによって論争は誇張されました。

B1 adjective /ˈɔːɡənaɪzd/

organized

組織的な

Meaning

Arranged in a systematic way, especially on a large scale.

Example

An organized approach to work increases productivity and reduces stress.

仕事に対する組織的なアプローチは、生産性を高め、ストレスを減らします。

C1 noun /ˈɔːrkɪd/

Orchid

オーキッド

Meaning

a diverse family of flowering plants known for their exotic and often fragrant flowers

Example

The white orchid on the windowsill bloomed for months.

窓辺の白いオーキッドは何ヶ月も咲き続けました。

B2 noun /ˈaʊtlet/

outlet

出口

Meaning

a means by which something is released, expressed, or distributed

Example

Art is a great outlet for emotions.

アートは感情のための素晴らしい出口です。

C2 noun /ˈɒb.stɪ.nə.si/

obstinacy

頑固

Meaning

Stubborn refusal to change one's opinion or chosen course of action, despite attempts to persuade one to do so.

Example

His obstinacy made negotiations difficult.

彼の頑固さは交渉を難しくしました。

A2 adjective /ˈɒb.vi.əs/

Obvious

明白な; 簡単に理解できる

Meaning

easily perceived or understood; clear and apparent to the mind

Example

It was obvious that she was upset about something.

それは彼女が何かについて不満を抱えていることが明らかでした。

B2 noun ˈəʊnəʃɪp

ownership

所有権

Meaning

The act, state, or right of possessing something; legal title to something.

Example

Ownership of resources was crucial.

資源の所有権は重要でした。

A1 adjective /oʊld/

old

古い

Meaning

having lived for a long time; not new or young

Example

He still drives his old car.

彼は今でも古い車を運転しています。

C2 verb /ˈɑːbdʒərˌɡeɪt/

objurgate

厳しく叱る

Meaning

to scold or rebuke severely

Example

The teacher objurgated the student for being dishonest.

先生は不正直な生徒を厳しく叱った。

B2 noun /ˈɔːkɪstrə/

orchestra

オーケストラ

Meaning

a large group of musicians playing different instruments together

Example

The orchestra performed beautifully at the concert.

オーケストラはコンサートで素晴らしい演奏をしました。

C2 noun ˌɒbfəsˈkeɪʃən

obfuscation

難解化, 混乱

Meaning

The action of making something obscure, unclear, or unintelligible.

Example

The obfuscation of the data made it difficult to interpret.

データの難解化により、解釈が困難になりました。

B2 noun /ˈoʊ.vər ɡroʊθ/

Over growth

過剰成長

Meaning

excessive growth beyond normal size; too much development or expansion

Example

The overgrowth of weeds made the garden look untidy.

雑草の過剰な繁茂が庭を乱雑に見せた。

C2 adjective /ɒmˈnɪp.ə.tənt/

omnipotent

全能

Meaning

Having unlimited power; able to do anything; all-powerful.

Example

In many religions, God is considered omnipotent.

多くの宗教では、神は全能だと考えられています。

C1 noun /ˈɑːlɪˌɡɑːrki/

oligarchy

寡頭政治

Meaning

A small group of people having control of a country, organization, or institution.

Example

The nation was ruled by a wealthy oligarchy that controlled all resources.

その国は裕福なオリガーキーによって支配され、すべての資源を支配していました。

B2 noun /əbˈdʒek.ʃən/

Objection

異議; 反対; 抗議;

Meaning

an expression of disagreement or disapproval; a reason for disagreeing

Example

The lawyer raised an objection during the trial.

弁護士は裁判中に異議を唱えました。

B2 verb /ˌoʊvərˈloʊd/

overload

過負荷

Meaning

to load with too much weight or cargo; to give too much work or information

Example

Don't overload the washing machine or it might break down.

洗濯機をオーバーロードしないでください、壊れるかもしれません。

C2 noun /ˈɒrɪz(ə)n/

orison

祈り

Meaning

a prayer, especially a devout or formal one

Example

He whispered a quiet orison before going to sleep.

寝る前に静かな祈りをささやいた。

C2 verb /əbˈtruːd/

obtrude

押し付ける

Meaning

to force oneself or one's ideas into a situation uninvited or inappropriately

Example

He didn’t want to obtrude into their private conversation.

彼は彼らのプライベートな会話に押し付けたくなかった。

C1 adjective /ˌaʊt əv ðə ˈweɪ/

out-of-the-way

人里離れた場所

Meaning

remote or unusual; not in a convenient or usual location

Example

They stayed in an out-of-the-way village.

彼らは人里離れた村に滞在しました。

C1 verb /əbˈstrʌkt/

obstruct

妨げる

Meaning

to block or hinder progress; to prevent or impede movement

Example

The fallen tree obstructed the road for several hours.

倒れた木が数時間道路をふさぎました。

C2 noun /ɔːˈreɪʃən/

oration

演説

Meaning

A formal speech, especially one given on a ceremonial occasion

Example

The president delivered an inspiring oration.

大統領は感動的な演説を行いました。

B2 adjective /ˈɒnɡəʊɪŋ/

ongoing

進行中

Meaning

continuing; still in progress

Example

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。

A2 verb /oʊˈbeɪ/

obey

従う

Meaning

to follow orders or instructions; to comply with rules

Example

Children should obey their parents and teachers.

子供たちは親と先生に従うべきです。

C2 noun /oʊf/

Oaf

不器用で愚かな、無神経な人

Meaning

a clumsy, stupid, or insensitive person

Example

Don't be such an oaf - handle the dishes carefully!

そんなオーフにならないで – お皿は気をつけて洗って！

B2 noun /əˌrɪʒ.əˈnæl.ə.ti/

Originality

独創性

Meaning

the quality of being novel or unusual; the ability to think independently and creatively

Example

The artist's work showed great originality and creativity.

アーティストの作品は大きな独創性と創造性を示した。

C1 noun /ˈɔr.ə.kəl/

Oracle

オラクル

Meaning

a person regarded as a source of wise counsel; in ancient times, a priest or priestess acting as a medium

Example

The ancient Greeks consulted the oracle at Delphi.

古代ギリシャ人はデルポイのオラクルに相談しました。

最適化する

Meaning

To make the best or most effective use of a situation, opportunity, or resource.

Example

The company is working to optimize its supply chain.

会社はサプライチェーンの最適化に取り組んでいます。