C1 adjective /fəˈnætɪk/

Fanatic

熱狂的な

Meaning

extremely passionate about something; showing excessive enthusiasm or devotion

Example

He is a fanatic supporter of his football team.

彼はサッカーチームの熱狂的なサポーターです。

C1 noun /ˈfæk.ʃən/

Faction

派閥

Meaning

a small organized dissenting group within a larger one

Example

Different factions within the party disagreed about the new policy.

党内の異なる派閥は新しい政策に対して意見が一致しませんでした。

C1 noun /ˈfɛtɪʃ/

fetish

過度または不合理な執着

Meaning

an excessive or irrational devotion to something

Example

He has a fetish for collecting rare stamps.

彼は珍しい切手を集めることに執着しています。

C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

未熟者, 経験不足, 新しく設立された

Meaning

New, inexperienced, newly established.

Example

The fledgling startup needs investment.

その新興企業は投資が必要です。

C1 verb /ˈflʌtər/

flutter

羽ばたく / 震える

Meaning

to move or flap quickly and lightly; to beat or wave with small rapid motions

Example

The butterfly began to flutter its wings in the sunlight.

蝶が日光の中で羽ばたき始めた。

C1 noun /ˈfʊtˌnoʊt/

foot-note

脚注

Meaning

A note of reference, explanation, or comment placed at the bottom of a page.

Example

The author included a foot-note to explain the historical context.

著者は歴史的な文脈を説明するために脚注を追加しました。

C1 verb /ˈflaʊndər/

flounder

もがく

Meaning

To struggle or stagger clumsily; to experience difficulty or confusion.

Example

He floundered in the interview when asked difficult questions.

彼は面接で難しい質問をされて、うろたえました。

C1 adjective, adverb (informal, vulgar) /ˈfʌkɪŋ/

fucking

クソ (強調のための卑猥な言葉)

Meaning

used for emphasis, often expressing anger or frustration (vulgar slang)

Example

It was a fucking disaster!

それはクソみたいな災害だった！

C1 noun flɛər

flair

才能

Meaning

A natural ability to do something well.

Example

She has a flair for design, always creating visually stunning work.

彼女はデザインに才能があり、常に視覚的に印象的な作品を作り出します。

C1 verb /ˈfæbrɪkeɪt/

fabricate

作り上げる

Meaning

to invent or concoct something, often with the intent to deceive; or to construct or manufacture

Example

The witness fabricated his testimony to protect himself.

証人は自分を守るために証言をでっち上げました。

C1 noun/verb /ˈfʌrəʊ/

furrow

Meaning

A long narrow trench made in the ground by a plow; to make wrinkles or grooves.

Example

The farmer plowed furrows in the field.

C1 noun /ˈfɔːr.tɪ.tjuːd/

fortitude

不屈

Meaning

Courage in pain or adversity; mental and emotional strength in facing difficulty.

Example

She faced adversity with great fortitude.

彼女は困難に立ち向かう強い意志を持っていました。

C1 noun /ˈfɔːrdʒəri/

forgery

偽造

Meaning

the crime of making fake documents, money, or artworks

Example

The bank detected a forgery in the signature on the cheque.

銀行は小切手の署名に偽造を発見しました。

C1 adjective /ˈfeɪl.seɪf/

fail-safe

故障防止

Meaning

designed to prevent failure or accidents; guaranteed to work correctly

Example

The engineers installed a fail-safe mechanism in the nuclear plant.

エンジニアは原子力発電所に故障防止メカニズムを設置しました。

C1 adjective /ˈfrɪdʒɪd/

Frigid

凍てつく; 寒い

Meaning

extremely cold; freezing; icy

Example

The frigid weather made it difficult to go outside.

冷たい天気で外に出るのが難しかった。

C1 noun /fɪˈnænʃɪər/

financier

金融家

Meaning

a person who manages large amounts of money or investments

Example

The financier advised the company on its investments.

金融家は会社に投資に関するアドバイスをしました。

C1 verb /fɔːrˈʃædoʊ/

foreshadow

予兆する

Meaning

To indicate or suggest something that will happen in the future

Example

Dark clouds foreshadowed an approaching storm.

暗い雲が近づく嵐を予兆していた。

C1 noun/verb /freɪ/

fray

争い, すり減る

Meaning

As a noun, a fight or heated dispute; as a verb, to unravel or wear out through friction.

Example

He tried to stay calm, but his nerves began to fray during the argument.

彼は冷静を保とうとしたが、議論の中で彼の神経はすり減り始めた。

C1 adjective /ˈfeɪt.fəl/

fateful

運命的または致命的

Meaning

having significant or disastrous consequences

Example

Their fateful decision changed the course of history.

彼らの運命的な決定は歴史の流れを変えました。

C1 noun /fɪˈnɑːleɪ/

finale

フィナーレ

Meaning

the last part or conclusion of a performance, event, or series

Example

The concert ended with a spectacular finale.

コンサートは壮観なフィナーレで終わりました。

C1 noun /frəˈdʒɪl.ɪ.ti/

fragility

もろさ

Meaning

The quality of being fragile; delicateness.

Example

The cornea's fragility increases with rubbing.

角膜のもろさはこすることで増加します。

C1 adjective /ˌfʊl ˈbɒd.id/

full-bodied

濃厚な味わい

Meaning

Having a strong, rich, and robust quality, especially of wine, coffee, or voice.

Example

He prefers a full-bodied red wine with his dinner.

彼は夕食に濃厚な味わいの赤ワインを好みます。

C1 noun /ˈfɔːrsəm/

foursome

四人組

Meaning

a group of four people or things, especially in games or social activities

Example

The foursome enjoyed a game of golf together.

四人組は一緒にゴルフを楽しみました。

C1 noun /fəˈrɒs.ə.ti/

ferocity

凶暴さ, 暴力, 強さ

Meaning

The state or quality of being ferocious; extreme fierceness or violence.

Example

The storm's ferocity was devastating.

嵐の凶暴さは壊滅的でした。

C1 noun /ˈfɔːrˌfɑːðər/

forefather

先祖

Meaning

an ancestor, especially one who was part of an earlier generation of a family or nation

Example

Our forefathers fought for independence.

私たちの先祖は独立のために戦いました。

C1 verb, noun /ˈflʌstər/

fluster

困惑させる

Meaning

to make someone agitated or confused

Example

The unexpected question flustered him.

予期しない質問が彼を困惑させた。

C1 noun /ˈfɪʃ.ər/

fissure

ひび割れ

Meaning

a long, narrow opening or crack in a surface or object

Example

The earthquake caused a deep fissure in the road.

地震によって道路に深いひび割れができました。

C1 adjective /ˈfrɛn.zid/

frenzied

狂乱

Meaning

Wildly excited or uncontrolled

Example

The frenzied crowd cheered as the band took the stage.

狂乱の群衆は、バンドがステージに上がると歓声を上げました。

C1 noun, verb /ˈfɛrɪt/

ferret

フェレット, 何かを粘り強く探すまたは発見する

Meaning

a small domesticated animal used for hunting; to search or uncover something persistently

Example

He ferreted out the hidden documents.

彼は隠された書類を見つけました。

C1 adjective /fərˈlɔːrn/

forlorn

孤独な, 絶望的な

Meaning

extremely sad, lonely, or abandoned

Example

The abandoned puppy looked so forlorn in the rain.

放置された子犬は雨の中でとても悲しそうに見えました。

C1 verb /flɔːnt/

flaunt

誇示する

Meaning

to show off something proudly, often to attract attention

Example

She likes to flaunt her new jewelry at parties.

彼女はパーティーで新しいジュエリーを誇示するのが好きです。

C1 noun /fiˈæs.koʊ/

fiasco

完全な失敗

Meaning

a complete failure, especially a ludicrous or humiliating one

Example

The event turned into a complete fiasco due to poor planning.

計画の悪さからそのイベントは完全な失敗に終わった。

C1 noun /ˈfɛləni/

felony

重罪

Meaning

a serious crime, usually punishable by imprisonment for more than one year

Example

He was convicted of a felony and sentenced to ten years in prison.

彼は重罪で有罪判決を受け、10年間の懲役刑を言い渡されました。

C1 adjective /frɔːt/

fraught

満ちた

Meaning

Filled with or likely to result in something undesirable.

Example

The negotiations were fraught with tension and uncertainty.

交渉は緊張と不確実性で満ちていました。

C1 noun /ˈfɔːrˌrʌnər/

forerunner

先駆者

Meaning

A person or thing that comes before another; a predecessor or harbinger.

Example

The Wright brothers were the forerunners of modern aviation.

ライト兄弟は現代の航空の先駆者でした。

C1 noun /ˈfɔːrˌθɔːt/

forethought

先見の明

Meaning

careful consideration of what will be necessary or may happen in the future

Example

With a little forethought, we could have avoided the problem.

少しの先見の明で、この問題を避けることができたかもしれません。

C1 adjective /ˈfrɪvələs/

frivolous

取るに足らない

Meaning

Not having any serious purpose or value; silly or unimportant.

Example

She dismissed the frivolous complaint quickly.

彼女は取るに足らない苦情をすぐに却下しました。

C1 adjective /ˈfiːlaɪn/

feline

猫に関する

Meaning

relating to or characteristic of cats

Example

Her movements were graceful and almost feline in their elegance.

彼女の動きは優雅で、ほとんど猫のようだった。

C1 verb /ˈfɔːrfɪt/

forfeit

Meaning

to lose or give up something, usually as a penalty for wrongdoing

Example

He had to forfeit the match after breaking the rules.

C1 noun /ˈfoʊ.kəs ˈtræk.ɪŋ/

focus tracking

フォーカス追跡

Meaning

A technique of monitoring and maintaining attention on specific tasks or goals.

Example

Proper focus tracking improves productivity.

適切なフォーカス追跡は生産性を向上させます。

C1 adjective /ˈflæʃi/

flashy

派手な, 目立つ

Meaning

ostentatious or showy in a way that attracts attention

Example

He drove a flashy sports car through the city streets.

彼は市街地を派手なスポーツカーで走った。

C1 noun /fæd/

fad

一時的な流行、トレンド

Meaning

a temporary fashion or trend; a short-lived craze

Example

The new diet became a popular fad among teenagers.

新しいダイエットはティーンエイジャーの間で人気の一時的なトレンドとなった。

C1 noun /ˈfaɪərɑːm/

firearm

火器

Meaning

a weapon capable of firing a projectile using gunpowder or other propellant

Example

The police found a hidden firearm during the investigation.

警察は調査中に隠された銃器を発見しました。

C1 noun /ˈfjʊərɔːr/

furor

騒動

Meaning

An outbreak of public anger or excitement.

Example

The politician's remarks created a furor in the media.

政治家の発言がメディアで大騒ぎを引き起こしました。

C1 noun /frɪndʒ/

fringe

装飾的縁 / 端

Meaning

A decorative border of threads; the outer edge or margin of something.

Example

The festival had a fringe of small independent performances.

フェスティバルには小さな独立したパフォーマンスの端がありました。

C1 verb /ˈfɔːlsɪfaɪ/

falsify

偽造する

Meaning

to make something false or to misrepresent

Example

He tried to falsify the documents to avoid taxes.

彼は税金を避けるために書類を偽造しようとした。

C1 noun /ˈfjuː.dʒə.tɪv/

Fugitive

逃亡者

Meaning

a person who has escaped from a place or is in hiding, especially to avoid arrest

Example

The police launched a manhunt to capture the fugitive who escaped from prison.

警察は刑務所から逃げた逃亡者を捕まえるために捜索を開始しました。

C1 adjective /fəˈnætɪkəl/

fanatical

熱狂的な

Meaning

showing extreme enthusiasm or obsession

Example

She has a fanatical interest in collecting vintage stamps.

彼女は古い切手を集めることに熱狂的な興味を持っています。

C1 noun /ˈflæt.ər.i/

Flattery

お世辞

Meaning

excessive and insincere praise, given especially to further one's own interests

Example

His constant flattery made everyone suspicious of his true motives.

彼の絶え間ないお世辞は、皆が彼の本当の意図を疑わせることになった。

C1 adjective /ˈfaɪ.naɪt/

Finite

有限な; 限界がある

Meaning

limited; having bounds or limits; not infinite

Example

Earth has finite natural resources.

地球には有限の自然資源があります。

C1 verb /fɔːrˈɡoʊ/

forgo

控える

Meaning

to decide not to do or have something

Example

She decided to forgo dessert to maintain her diet.

彼女はダイエットを維持するためにデザートを控えることを決めました。

C1 adjective fæsˈtɪd.i.əs

fastidious

几帳面な

Meaning

Very attentive to and concerned about accuracy and detail.

Example

She is fastidious about maintaining cleanliness.

彼女は清潔を保つことにとても几帳面だ。

C1 adverb /ˈfeɪ.təl.i/

Fatally

致命的に

Meaning

in a way that causes death; with deadly consequences; critically

Example

The accident fatally injured two passengers.

事故は二人の乗客を致命的に負傷させた。

C1 adjective /ˈfaɪə.ri/

Fiery

燃えるような; 熱心な; 怒りっぽい

Meaning

burning; passionate; hot-tempered; showing strong emotion

Example

She has a fiery temper that flares up quickly.

彼女はすぐに燃えるような性格で、すぐに怒る。

C1 noun /ˌfɜːrmənˈteɪʃən/

fermentation

発酵、酵母または細菌による化学変化

Meaning

a chemical process by which substances like sugar are converted into alcohol or acids using microorganisms

Example

The fermentation of grapes produces wine.

ぶどうの発酵はワインを生産します。

C1 adjective /ˈfræɡməntɪd/

fragmented

断片化, 分割, 不完全

Meaning

Having been broken into fragments; disjointed or incomplete.

Example

The information was fragmented and difficult to understand.

情報は断片化されていて、理解するのが難しかった。

C1 noun /ˈflɔː.rə/

flora

特定の地域や生息地に見られる植物生命

Meaning

The plant life found in a particular region or habitat.

Example

The Amazon rainforest is home to a vast flora diversity.

アマゾンの熱帯雨林は豊かなフローラの多様性の家です。

C1 adjective /ˈfruː.ɡəl/

Frugal

節約的; 倹約的

Meaning

economical; thrifty;

Example

She is very frugal and saves money by buying only necessary items.

彼女はとても倹約的で、必要な物だけを買ってお金を節約しています。

C1 adjective ˈfæʃ.ɪst

fascist

ファシスト

Meaning

Relating to or characteristic of fascism; extremely authoritarian.

Example

Fascist governance undermines freedom.

ファシスト政権は自由を脅かす。

C1 noun /ˈfaɪər.wɔːl/

firewall

ファイアウォール

Meaning

A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Example

A firewall protects networks from cyber-attacks.

ファイアウォールはネットワークをサイバー攻撃から守ります。

C1 noun /ˈfiːtəs/

fetus

胎児

Meaning

an unborn or unhatched offspring in the womb or egg

Example

The doctor explained the development of the fetus during pregnancy.

医師は妊娠中の胎児の発達について説明しました。

C1 noun /ˈfɔːrdʒər/

forger

偽造者

Meaning

a person who makes fake documents, artworks, or signatures

Example

The police arrested a forger who had been selling counterfeit paintings.

警察は偽造者を逮捕しました。彼は偽の絵画を販売していました。

C1 verb /fɔːrˈɡoʊ/

forego

断る

Meaning

to decide not to do or have something pleasant or valuable

Example

She decided to forego dessert to maintain her diet.

彼女はダイエットを維持するためにデザートを断ることに決めました。

C1 verb /fret/

fret

心配する

Meaning

to worry or be anxious; to be troubled

Example

Don't fret about the exam results.

試験結果について心配しないでください。

C1 adjective /ˈfɛrəl/

feral

野生の

Meaning

existing in a wild or untamed state; not domesticated

Example

The feral cat roamed the streets at night.

その野良猫は夜に街を歩き回っていた。

C1 noun, verb /ˈfɜːrloʊ/

furlough

一時休職

Meaning

temporary leave of absence from work, especially that granted to an employee or soldier

Example

Many workers were placed on furlough during the crisis.

多くの労働者は危機の間に休職させられました。

C1 noun /ˈfɔːrɡraʊnd/

foreground

前景

Meaning

the part of a scene that is nearest to and in front of the viewer

Example

The flowers in the foreground brightened the picture.

前景にある花が絵を明るくしました。

C1 verb /flaʊt/

flout

無視する

Meaning

To openly disregard or show contempt for a rule or law.

Example

The company was fined for flouting environmental regulations.

その会社は環境規制を無視したため罰金を科せられました。

C1 noun /flæt fɪʃ/

Flat fish

カレイ

Meaning

a type of fish with a flattened body that lives on the sea floor

Example

Flat fish like sole and flounder are excellent for grilling.

カレイやヒラメのようなフラットフィッシュはグリルに最適です。

C1 noun /ˈfɪɡjərˌhɛd/

figurehead

名目上の指導者

Meaning

a nominal leader with no real power; a symbolic head

Example

The king was merely a figurehead with no real authority.

王は実際の権限を持たない象徴的な指導者に過ぎなかった。

C1 adjective /frəˈnɛtɪk/

frenetic

狂乱の

Meaning

Fast and energetic in a wild or uncontrolled way.

Example

The stock market experienced frenetic trading after the announcement.

発表後、株式市場は狂乱の取引を経験しました。

C1 noun /ˈfɔɪeɪr/

foyer

ロビー

Meaning

An entrance hall or lobby in a building.

Example

The guests waited in the hotel foyer before checking in.

ゲストはチェックインする前にホテルのロビーで待っていました。

C1 adjective /flæmˈbɔɪənt/

flamboyant

派手で色鮮やかな、または自信に満ちた

Meaning

showy, strikingly bold or colorful; confident and lively

Example

His flamboyant style drew everyone's attention at the party.

彼の派手なスタイルはパーティーで皆の注目を集めました。

C1 adjective ˈfjuː.taɪl

futile

無駄な

Meaning

Incapable of producing any useful result; pointless.

Example

His attempts to change the situation were futile.

状況を変えるための彼の試みは無駄だった。

C1 noun /ˌfɪɡjʊˈriːn/

figurine

小さな装飾用の像

Meaning

a small ornamental statue or model of a human or animal

Example

She bought a porcelain figurine of a dancing ballerina.

彼女はダンスをするバレリーナの陶器のフィギュリンを買いました。

C1 noun /fɔːrˈkloʊʒər/

foreclosure

差し押さえ

Meaning

The legal process by which a lender takes control of a property from a borrower who has failed to make payments.

Example

The family lost their home due to foreclosure after missing several mortgage payments.

その家族は複数回のモーゲージ支払いを逃したため、差し押さえで家を失いました。

C1 noun /fəˈtæləti/

fatality

致命的な事故

Meaning

An occurrence of death by accident, disaster, or violence.

Example

The accident resulted in one fatality.

その事故で1人が死亡した。

C1 adjective /ˈfɜːr.vənt/

fervent

情熱的な、熱心な

Meaning

having or showing intense passion or enthusiasm

Example

She gave a fervent speech about climate change.

彼女は気候変動について情熱的なスピーチを行った。

C1 adjective /ˌfɑːrˈfetʃt/

farfetched

ありそうもない、またはあり得ない

Meaning

unlikely to happen or be true; improbable

Example

His explanation for being late sounded farfetched.

彼の遅刻の説明は信じがたいものだった。

C1 adjective /fɪkˈtɪʃəs/

fictitious

虚構の、偽の

Meaning

not real or true; imaginary or fabricated

Example

The story he told was entirely fictitious.

彼が話した話は完全に虚構だった。

C1 verb /fɔːrˈtɛl/

foretell

予知する

Meaning

to predict or announce something before it happens

Example

The old man claimed he could foretell the future.

その老人は未来を予知できると主張した。

C1 noun ˌfɜːr.tɪ.laɪˈzeɪ.ʃən

fertilization

肥料施用

Meaning

The process of adding nutrients to soil to increase crop productivity.

Example

Organic fertilization enhances soil health.

有機肥料施用は土壌の健康を改善します。

C1 verb /ˈfɔːltər/

falter

ためらう、または力や勢いを失う

Meaning

to hesitate or lose strength or momentum

Example

Her voice faltered as she delivered the speech.

彼女の声はスピーチをする際に途切れました。

C1 noun /ˈfreɪlti/

frailty

脆弱

Meaning

The condition of being weak, delicate, or easily broken.

Example

Old age often comes with physical frailty.

老化はしばしば身体的な脆弱さと共に訪れます。

C1 noun /flʌks/

flux

フロー

Meaning

continuous change or movement; the rate of flow of something

Example

The company was in a state of constant flux during the reorganization.

会社は再編成の間、絶え間ない変化の中にありました。

C1 adjective /ˈfɔːrθˌraɪt/

forthright

率直

Meaning

Direct and honest in speech or behavior; straightforward.

Example

She was forthright in her criticism of the policy.

彼女は政策に対する批判で率直だった。

C1 noun /ˈfjuː.tʃə.rɪst/

futurist

未来学者

Meaning

A person who studies or predicts the future, especially trends in science, technology, or society.

Example

The futurist predicted major changes in transportation within the next decade.

未来学者は次の10年間で交通に大きな変化があると予測しました。

C1 adjective /ˈfɔːrsəbl/

forcible

強制的

Meaning

Done by force; using physical strength or power.

Example

The police made a forcible entry into the house.

警察は強制的に家に入った。

C1 noun /ˈfɔːrˌbɛər/

forebear

先祖

Meaning

An ancestor, especially one who lived a long time ago.

Example

He often speaks of his forebears with great respect.

彼はしばしば自分の先祖について尊敬を込めて話します。

C1 adjective ˈflʌd proʊn

flood-prone

洪水に見舞われやすい

Meaning

Susceptible to flooding; likely to experience floods frequently.

Example

Bangladesh is a flood-prone deltaic nation.

バングラデシュは洪水が発生しやすいデルタ国家です。

C1 noun /ˈfɔːr.teɪ/ or /fɔːrt/

forte

得意

Meaning

a strong ability or talent; something one does particularly well

Example

Cooking is definitely her forte.

料理は間違いなく彼女の得意分野です。

C1 adjective /ˈfɔːrmətɪv/

formative

形成的

Meaning

Having a lasting influence on a person's development or character.

Example

Childhood is often described as a formative stage in life.

子供時代は人生の中で形成的な段階としてよく説明されます。

C1 adjective ˈfɔːr.mɪ.də.bəl

formidable

手ごわい

Meaning

Inspiring fear or respect through being impressively large, powerful, intense, or capable.

Example

The boxer was a formidable opponent in the ring.

そのボクサーはリングで手ごわい相手だった。

C1 adjective /ˈfɜːrtɪv/

furtive

ひそかな

Meaning

Attempting to avoid notice or attention, typically because of guilt or a belief that discovery would lead to trouble.

Example

He cast a furtive glance at the door before leaving.

彼は出発前にひそかにドアを見た。

C1 adjective /ˈfuːlpruːf/

foolproof

失敗しない

Meaning

Designed to be very easy to use or understand, leaving no possibility of failure or error.

Example

The new software has a foolproof installation process.

新しいソフトウェアには失敗しないインストールプロセスがあります。

C1 noun ˌfræɡ.mənˈteɪ.ʃən

fragmentation

フラグメンテーション

Meaning

The process or state of breaking or being broken into fragments.

Example

Habitat fragmentation threatens many species.

生息地のフラグメンテーションは多くの種に脅威を与えています。

C1 noun /ˈfæm.ɪn/

Famine

飢饉

Meaning

extreme scarcity of food; a period when food is extremely scarce

Example

The severe drought led to widespread famine in the region.

厳しい干ばつが地域で広範な飢饉を引き起こしました。

C1 adverb /ˈfɪksɪdli/

Fixedly

固定的に

Meaning

in a steady, unmoving manner; with intense concentration

Example

He stared fixedly at the painting.

彼は絵を固定的に見つめていた。

C1 noun /ˈfɔːrwɜːrd/

foreword

序文

Meaning

a short introduction at the beginning of a book, typically written by someone other than the author

Example

The foreword of the book was written by a famous historian.

その本の序文は、有名な歴史家によって書かれました。

C1 adjective /ˈflɪmzi/

flimsy

弱々しい

Meaning

weak, fragile, or lacking in strength; not convincing

Example

The chair was too flimsy to support his weight.

その椅子は重さを支えられないほど弱々しかった。

C1 noun /ˈfren.zi/

Frenzy

熱狂

Meaning

a state or period of uncontrolled excitement or wild behavior; intense activity

Example

The announcement of the sale created a shopping frenzy at the mall.

セールの発表はショッピングの熱狂を引き起こしました。

C1 noun/verb ˈfɒr.ɪdʒ

forage

飼料、食べ物を探す

Meaning

Food for horses and cattle, especially dried hay or feed; to search for food.

Example

Animals forage for food during the winter months.

動物たちは冬の間に食べ物を探します。

C1 noun /foʊ/

foe

敵

Meaning

an enemy or opponent

Example

The knight fought bravely against his foe.

騎士は勇敢に自分の敵と戦った。

C1 noun /fruːˈɡæl.ə.ti/

frugality

倹約

Meaning

The quality of being economical in use or expenditure; not wasteful.

Example

Frugality is essential for saving money effectively.

倹約はお金を効果的に節約するために不可欠です。

C1 noun /ˈfɪʃˌmʌŋ.ɡər/

fishmonger

魚屋

Meaning

a person or store that sells fish

Example

I bought fresh salmon from the local fishmonger.

私は地元の魚屋で新鮮なサーモンを買いました。

C1 noun /ˈfɔːls.hʊd/

Falsehood

虚偽; 嘘

Meaning

the state of being untrue; a lie

Example

The politician was caught spreading falsehoods about his opponent.

その政治家は対立候補について虚偽を広めているところを見つかった。

C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

フローラとファウナ

Meaning

The plants and animals of a particular region, habitat, or geological period.

Example

The Galápagos Islands have unique flora and fauna.

ガラパゴス諸島には独特のフローラとファウナがあります。

C1 noun /fəˈsɑːd/

facade

ファサード

Meaning

The front of a building; a false or superficial appearance

Example

The building's glass facade reflected the sunset.

建物のガラスのファサードは日没を反映していた。

C1 adjective /ˈfrɔːdjʊlənt/

fraudulent

詐欺的な

Meaning

Involving or using deceit, especially criminal deception.

Example

He was arrested for making fraudulent insurance claims.

彼は詐欺的な保険金請求を行ったため逮捕されました。

C1 noun fluˈɪd.ɪ.ti

fluidity

流動性

Meaning

The ability of a substance to flow easily; smooth and graceful movement or style.

Example

The fluidity of the dancer's movements was mesmerizing.

ダンサーの動きの流動性は魅惑的でした。

C1 noun, verb /fɔːrd/

ford

浅瀬

Meaning

A shallow place in a river where one can cross; to cross a river at such a place.

Example

The travelers decided to ford the river at dawn.

旅行者たちは夜明けに川を渡ることに決めました。

C1 noun/verb /fliːs/

fleece

Meaning

The woolly covering of a sheep; as a verb, to swindle or cheat someone.

Example

The farmer sheared the sheep’s fleece carefully.

C1 noun /fjuːd/

feud

争い, 敵意

Meaning

a prolonged and bitter quarrel or conflict, often between families or groups

Example

The two families have been in a feud for generations.

二つの家族は世代を超えて争い続けています。

C1 adjective /ˈfleɪɡrənt/

flagrant

目立って明らかに間違っている

Meaning

shockingly noticeable or evident; glaringly wrong

Example

It was a flagrant violation of the rules.

それは規則の明らかな違反でした。

C1 noun ˌfiː.zəˈbɪl.ə.ti

feasibility

実現可能性

Meaning

The state or degree of being easily or conveniently done; possibility.

Example

The company conducted a feasibility study before launching the project.

会社はプロジェクトを開始する前に実現可能性調査を行った。

C1 noun ˌflʌk.tʃuˈeɪ.ʃən

fluctuation

変動

Meaning

An irregular rising and falling in number or amount; a variation.

Example

The stock market experiences frequent fluctuation.

株式市場は頻繁に変動します。

C1 adjective /ˈfiːbl/

feeble

弱い, 無力

Meaning

lacking physical strength or vigor; weak

Example

After the illness, she felt too feeble to stand.

病気の後、彼女は立ち上がるにはあまりにも弱かった。

C1 noun /fɑːrs/

farce

茶番

Meaning

a comic dramatic work using buffoonery and horseplay, or a ridiculous situation

Example

The meeting turned into a complete farce with everyone arguing.

会議は完全に茶番に変わり、みんなが議論していた。

C1 noun /fəˌsɪlɪˈteɪʃən/

facilitation

容易化

Meaning

The action of facilitating or making an action or process easier or helping bring about an outcome.

Example

Her facilitation made the meeting run smoothly.

彼女のファシリテーションにより、会議はスムーズに進行しました。

C1 noun /ˈfɛərˌɡraʊndz/

fairgrounds

見本市会場

Meaning

A designated area where fairs, exhibitions, and amusement events are held

Example

The town set up rides and stalls at the fairgrounds for the annual festival.

町は年次祭のために見本市会場に乗り物と屋台を設置した。

C1 adjective /ˈflæɡɪŋ/

flagging

疲れる、弱くなる、または熱意を失う

Meaning

becoming tired, weaker, or less enthusiastic

Example

After hours of work, his energy was flagging.

長時間働いた後、彼のエネルギーは衰えていた。