foible
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C2 noun /ˈfɔɪbəl/

foible

小さな弱点
Meaning
A minor weakness or eccentricity in someone's character.
Example
She loved him despite his little foibles.
彼女は彼の小さな弱点を気にせずに彼を愛していた。
B2 verb fəˈsɪl.ɪ.teɪt

facilitate

容易にする
Meaning
Make an action or process easier or more achievable; to help bring about.
Example
Good infrastructure facilitates economic growth.
良いインフラは経済成長を容易にする。
C2 adjective /ˈfɪnɪki/

finicky

気難しい; 詳細に非常にこだわる
Meaning
difficult to please; very particular about details
Example
He is so finicky about his food that he only eats organic vegetables.
彼は自分の食べ物に対してとても細かいので、有機野菜だけを食べます。
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

菌類
Meaning
a group of spore-producing organisms such as mushrooms, molds, and yeasts
Example
Fungi play an important role in breaking down organic matter in nature.
菌類は自然界で有機物を分解する重要な役割を果たします。
B2 adverb /ˈfɜ:rst hænd/

First-hand

直接; 原始の源から
Meaning
directly experienced or obtained; from the original source
Example
I experienced the earthquake first-hand.
私は地震を直接体験しました。
A1 noun/verb /fɪlm/

film

映画
Meaning
a motion picture or movie; or to record on camera
Example
They watched a film together on the weekend.
彼らは週末に一緒に映画を見ました。
A2 verb /fiːd/

feed

餌を与える
Meaning
to give food to a person or animal
Example
She feeds the birds every morning.
彼女は毎朝鳥に餌を与えます。
A1 verb /feɪs/

face

直面する
Meaning
to confront or deal with; to turn toward; to have the front in a particular direction
Example
She had to face many challenges in her new job.
彼女は新しい仕事で多くの課題に直面しなければならなかった。
A2 noun /ˈfɔːrənər/ or /ˈfɑːrənər/

foreigner

外国人
Meaning
A person from another country.
Example
The city welcomes every foreigner with kindness.
その都市はすべての外国人を親切に迎えます。
C2 noun /ˈfriːˌθɪŋkər/

freethinker

自由思想家
Meaning
A person who forms opinions based on reason and independent thought rather than tradition or authority.
Example
Voltaire was considered a great freethinker of his time.
ヴォルテールは彼の時代の偉大な自由思想家と見なされていました。
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。
C2 adjective /ˈfʌŋɡəs/

fungous

きのこに似た
Meaning
relating to or resembling a fungus
Example
The damp basement had a fungous smell.
湿った地下室はきのこに似た匂いがした。
C1 noun /fɪˈdɛl.ɪ.ti/

fidelity

忠誠心
Meaning
Faithfulness to a person, cause, or belief, demonstrated by continuing loyalty and support.
Example
A dog's fidelity to its owner is unmatched.
犬の忠誠心はその飼い主に対して比類のないものです。
A2 verb /friːz/

freeze

凍る
Meaning
to become solid due to cold; to preserve by cold
Example
Water freezes at zero degrees Celsius.
水は零度で凍ります。
B2 noun /ˈfɔːr.hed/

Forehead

額
Meaning
the part of the face above the eyebrows and below the hairline
Example
He wiped the sweat from his forehead.
彼は額から汗を拭った。
C2 adjective /ˈfrɒθi/

frothy

泡立てた
Meaning
Full of or covered with small bubbles; light and insubstantial.
Example
She ordered a cup of frothy cappuccino.
彼女は泡立てたカプチーノを注文しました。
C1 noun /frɪˈvɒləti/

frivolity

軽薄さ
Meaning
Lack of seriousness; silly or trivial behavior.
Example
The teacher discouraged frivolity during the exam.
先生は試験中の軽薄な行動を戒めました。
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。
C2 verb /ˌfɔːrˈrʌn/

forerun

先駆ける
Meaning
To go before; to precede in time, place, or action.
Example
Dark clouds often forerun a storm.
暗い雲はしばしば嵐の前触れとなる。
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。
B2 adjective /ˈfruːt.fəl/

Fruitful

実り多い; 有益な; 成功した;
Meaning
productive; beneficial; successful;
Example
Our discussion was very fruitful and led to many new ideas.
私たちの議論は非常に実り多く、新しいアイデアをたくさん生み出しました。
C2 adjective/noun /fɪˈduː.ʃi.er.i/

fiduciary

信託の
Meaning
Involving trust, especially with regard to the relationship between a trustee and a beneficiary.
Example
Banks have fiduciary duties towards their clients.
銀行は顧客に対して信託義務を負っています。
B2 verb ˈfɔːr.mjə.leɪt

formulate

策定する
Meaning
To create or develop a plan or idea clearly and specifically, to construct an idea or strategy clearly.
Example
The company must formulate a strategy for expansion.
会社は拡張戦略を策定する必要があります。
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 adverb /ˈfɜː.vənt.li/

Fervently

熱心に; 熱烈に;
Meaning
with passionate intensity; ardently; with great emotion or enthusiasm
Example
She fervently hoped that her dreams would come true.
彼女は自分の夢が実現することを熱心に願っていました。
B2 noun /fɪst/

Fist

こぶし; 拳
Meaning
a person's hand when the fingers are bent in toward the palm and held there tightly
Example
He raised his fist in victory after winning the championship match.
彼はチャンピオンシップマッチで勝利した後、拳を上げた。
C2 adjective fɔːˈtjuː.ɪ.təs

fortuitous

偶然の
Meaning
Happening by accident or chance rather than design; lucky or fortunate.
Example
Their meeting was purely fortuitous.
彼らの出会いは完全に偶然でした。
B1 noun /ˈfæktər/

factor

要因
Meaning
A circumstance, fact, or influence that contributes to a result.
Example
Weather is an important factor in crop production.
天候は作物生産において重要な要因です。
B2 adjective /fɪərs/

Fierce

激しい; 攻撃的; 強い感情や決意を示す
Meaning
violent; aggressive; showing strong feeling or determination
Example
The fierce storm destroyed many houses in the village.
激しい嵐が村の多くの家を壊しました。
B2 verb, adjective /ˈfɒstər/

foster

育てる
Meaning
to encourage the development of something; to raise a child that is not one's own
Example
The program aims to foster creativity in young students.
そのプログラムは若い学生たちに創造力を促進することを目的としています。
C1 noun /fɪˈnɛs/

finesse

巧妙さ, 技量, 洗練
Meaning
Subtlety and skill; refinement and delicacy in performance or artistry.
Example
The artist painted with great finesse.
そのアーティストは大きな巧妙さで絵を描いた。
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。
A1 adjective /frɛntʃ/

french

フランスの
Meaning
Relating to France, its people, or their language.
Example
We enjoyed delicious French cuisine on our trip to Paris.
私たちはパリ旅行で美味しいフランス料理を楽しみました。
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。
C2 noun /ˈfriːˌbuːtər/

freebooter

海賊
Meaning
A pirate or plunderer who roams freely in search of wealth.
Example
The freebooter raided the merchant ships along the coast.
海賊は沿岸の商船を襲った。
A2 noun /fraɪd raɪs/

Fried rice

チャーハン
Meaning
a dish of cooked rice that has been stir-fried in a wok or frying pan
Example
We ordered chicken fried rice from the Chinese restaurant.
私たちは中国料理店からチキンフライドライスを注文しました。
C2 adjective /ˈfraɪəbl/

friable

もろい
Meaning
Easily crumbled or reduced to powder.
Example
The old brick wall was friable and broke apart at a touch.
古いレンガの壁はもろく、触れると壊れました。
A2 noun/verb /fɛns/

fence

フェンス
Meaning
a barrier, usually made of wood or wire, that surrounds an area; to enclose with a barrier
Example
They built a fence around the garden.
彼らは庭の周りにフェンスを作った。
B1 noun /fɒɡ/

Fog

霧
Meaning
a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface that reduces visibility
Example
Dense fog covered the highway this morning.
今朝、濃霧が高速道路を覆いました。
B1 noun, verb /ˈfaɪ.næns/ or /fəˈnæns/

finance

ファイナンス
Meaning
the management of money and investments, or to provide funds for something
Example
The company secured finance from a major bank.
その会社は大手銀行から資金を調達しました。
C2 adjective /ˈfɪt.fəl/

fitful

不規則な
Meaning
occurring in irregular bursts; not continuous or steady
Example
He had a fitful sleep due to the storm.
嵐のせいで彼は不規則な眠りをしていた。
B2 noun /ˈfræɡ.mənt/

Fragment

断片; 部分;
Meaning
a small part broken or separated off something; an incomplete or isolated portion
Example
Archaeologists found fragments of ancient pottery buried in the soil.
考古学者たちは土の中で古代の陶器の断片を発見しました。
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 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。
B2 verb /fʊlˈfɪl/

fulfil

果たす
Meaning
to complete or achieve something that was expected or promised; to satisfy a requirement or desire
Example
She worked hard to fulfil her dream of becoming a doctor.
彼女は医者になる夢を果たすために一生懸命働いた。
A2 noun /flʌd/

Flood

洪水
Meaning
an overflow of a large amount of water beyond its normal limits
Example
The heavy rain caused a flood in the village.
激しい雨が村に洪水を引き起こした。
B1 adjective /fɒnd/

fond

好き
Meaning
having a strong liking or affection for something or someone
Example
She is fond of painting and spends hours in front of her canvas.
彼女は絵を好きで、キャンバスの前で何時間も過ごします。
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。
A2 adjective /ˈfaɪ.nəl/

Final

最終的な; 決定的な; 最後の
Meaning
last; concluding; decisive; ultimate
Example
This is the final exam of the semester.
これは学期の最終試験です。
A1 number /ˈfɔːrti/

forty

幸せ
Meaning
the number 40; ten times four
Example
She celebrated her forty years of life with a big party.
彼女は賞を受け取ったとき、幸せを隠せなかった。
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。
C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

予知
Meaning
Awareness of something before it happens or exists.
Example
The prophet claimed to have foreknowledge of the event.
預言者はその出来事の予知をしていると主張した。
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。
A2 verb ˈfoʊkəs

focus

集中する
Meaning
To concentrate attention or effort on something; to direct one's attention or efforts towards a particular activity, subject, or problem.
Example
Focus on what truly matters to simplify your life.
本当に重要なことに集中して、人生をシンプルにしましょう。
A2 noun /ˈfoʊldər/

folder

フォルダー
Meaning
a container or directory used to store and organize papers or digital files
Example
I saved all the photos in a separate folder.
すべての写真を別のフォルダーに保存しました。
B2 noun /ˈfæntəsi/

fantasy

ファンタジー
Meaning
a creation of the imagination, especially something improbable or impossible
Example
She has a vivid fantasy about traveling to space.
彼女は宇宙旅行に関する生き生きとしたファンタジーを持っています。
C2 noun /feɪt/

fete

祭り、フェスティバル
Meaning
a celebration or festival, often in honor of someone
Example
The village held a grand fete to celebrate the harvest.
村は収穫を祝うために盛大な祭りを開催しました。
C2 adjective /ˈfʊl.səm/

fulsome

過剰な賞賛
Meaning
Excessively flattering or insincere; abundant or generous in amount.
Example
He offered fulsome praise to his boss.
彼は上司に過剰な賞賛を提供しました。
C2 verb /ˈfrʌktɪˌfaɪ/

fructify

実らせる
Meaning
To make fruitful or productive; to bear fruit.
Example
The new policies will help fructify the economic potential of the region.
新しい政策は地域の経済的な潜在能力を実らせるのに役立ちます。
C2 noun /feɪnt/

feint

フェイント, 偽りの動き
Meaning
a deceptive or pretended movement, especially in fighting or sports
Example
The boxer made a feint to the left before striking to the right.
ボクサーは右に打つ前に左にフェイントをかけました。
C2 noun /ˌfjuːzɪˈleɪd/

fusillade

集中射撃
Meaning
A series of shots fired or missiles thrown all at the same time or in quick succession.
Example
The soldiers advanced under a fusillade of bullets.
兵士たちは集中射撃の中で前進した。
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 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。
A2 adverb/adjective/verb /ˈfɜːrðər/

further

進める
Meaning
At a greater distance; to advance or promote something.
Example
She studied hard to further her career.
彼女はキャリアを進めるために一生懸命勉強した。
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。
B1 noun freɪm

Frame

額縁
Meaning
A rigid structure that surrounds something such as a picture, door, or windowpane.
Example
A framed family tree can be displayed in your home.
額縁に入れた家系図は家で展示できます。
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。
A1 noun /fruːt/

fruit

果物
Meaning
The sweet and fleshy product of a plant that contains seeds.
Example
Mango is my favorite fruit.
マンゴーは私のお気に入りのフルーツです。
C2 noun /fluː/

flue

煙道
Meaning
A pipe or channel for smoke and waste gases produced by a fire, gas heater, or power station.
Example
The chimney flue needs to be cleaned regularly.
煙突の煙道は定期的に掃除する必要があります。
B2 noun /ˈfɜːrneɪs/

furnace

炉
Meaning
an enclosed structure in which heat is produced for a building or for melting metal
Example
The factory's furnace melted the metal quickly.
工場の炉は金属を迅速に溶かしました。
C1 adjective /ˈfɪk.əl/

Fickle

気まぐれな; 不安定な; 変わりやすい;
Meaning
changeable; inconstant; liable to sudden unpredictable change
Example
His fickle nature made it hard to trust his promises.
彼の気まぐれな性格は、彼の約束を信じることを難しくした。
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。
B2 noun fəˈtiːɡ

fatigue

疲労
Meaning
Physical or mental exhaustion due to prolonged exertion or mental stress
Example
Lack of sleep leads to extreme fatigue.
睡眠不足は極度の疲労を引き起こします。
C2 noun /ˈfrɛʃɪt/

freshet

突然の川の氾濫
Meaning
A sudden overflow of a stream or river caused by heavy rain or melting snow.
Example
After the storm, the river turned into a raging freshet.
嵐の後、川は激しいフレシェットに変わった。
A2 adjective /frɛʃ/

fresh

新鮮
Meaning
new, recently made, or clean and pure
Example
The bread is still fresh from the oven.
パンはオーブンから出たばかりです。
B2 noun /ˌfiː.ɑːnˈseɪ/

Fiancee

婚約者
Meaning
a woman who is engaged to be married
Example
John bought a beautiful engagement ring for his fiancee.
ジョンは彼の婚約者に美しい婚約指輪を買いました。
C2 noun /fækˈsɪmɪli/

facsimile

コピー
Meaning
an exact copy or reproduction of a document
Example
He sent a facsimile of the contract to the client.
彼は契約書のコピーをクライアントに送った。
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。
C2 adjective /ˈfrɛtfəl/

fretful

不安な
Meaning
Feeling or showing distress or irritation.
Example
The baby was fretful all night and could not sleep.
赤ちゃんは一晩中不安で眠れませんでした。
C2 adjective /ˈfæð.əm.ləs/

fathomless

理解不可能な、または測定不可能な; 非常に深い
Meaning
impossible to understand or measure; very deep
Example
The ocean seemed fathomless as it stretched to the horizon.
海は地平線まで広がると、測り知れないように見えました。
B2 adverb /ˈfɔːrməli/

formally

正式に
Meaning
in a formal or official manner; according to established rules or conventions
Example
The agreement was formally signed by both parties.
その合意は両当事者によって正式に署名された。
B2 noun /ˈfɔːr.kæst/

Forecast

天気予報
Meaning
a prediction or estimate of future events, especially coming weather conditions
Example
The weather forecast predicted heavy rain for the entire weekend.
天気予報は週末全体で大雨を予測しました。
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。
C2 noun /ˈfɔːθ.raɪt.nəs/

forthrightness

坦率さ
Meaning
The quality of being honest and straightforward; directness.
Example
Her forthrightness made her a respected journalist.
Her forthrightness made her a respected journalist.
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。
B2 verb /flɪp/

flip

ひっくり返す
Meaning
to turn over quickly or suddenly; to toss lightly
Example
She flipped the pancake in the pan.
彼女はパンケーキをフライパンでひっくり返した。
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。
A2 noun /fluː/

flu

インフルエンザ
Meaning
a contagious viral illness causing fever, aches, and respiratory symptoms; influenza
Example
She stayed home because she had the flu.
彼女はインフルエンザなので家にいました。
C2 adjective /ˈfiːbraɪl/

febrile

発熱の、興奮した
Meaning
having or showing the symptoms of a fever; or highly excitable or agitated
Example
The patient was in a febrile state with high temperature.
患者は高い温度の熱の状態にありました。
C2 adverb /ˌfɔːrθˈwɪθ/

Forthwith

ただちに; 遅れなく; すぐに
Meaning
immediately; without delay; at once
Example
The manager ordered the employee to stop the unsafe practice forthwith.
マネージャーは従業員に危険な行為をただちにやめるように命じました。
B1 verb /fel/

fell

倒す, 伐採する
Meaning
to cut down a tree; to cause to fall; to strike down
Example
The lumberjacks felled several trees in the forest today.
木こりたちは今日、森の中でいくつかの木を倒しました。
B1 verb /ˈfɛri/

ferry

フェリーで運ぶ
Meaning
to transport by boat; to carry back and forth
Example
The boat ferried passengers across the river.
船は乗客を川の向こうに運びました。
B2 adjective /ˈflʌfi/

fluffy

幸せ
Meaning
soft, light, and airy in texture
Example
She baked a fluffy cake for the party.
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。
C2 adjective /ˈfuːlˌhɑːrdi/

foolhardy

無謀な
Meaning
Recklessly bold or rash; taking foolish risks.
Example
It was foolhardy of him to climb the mountain without proper gear.
適切な装備なしで山に登るのは無謀だった。
B2 adjective, noun, verb /faʊl/

foul

Meaning
offensive to the senses; dirty or unpleasant; in sports, an unfair or illegal act
Example
The player was penalized for committing a foul.
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。
A2 noun /fɪlm ˈæktər/

film actor

映画俳優
Meaning
A person who performs roles in movies or films.
Example
The film actor received widespread acclaim for his performance.
その映画俳優は演技で広く称賛されました。
A2 adjective /fænˈtæstɪk/

Fantastic

素晴らしい; 驚くべき; 優れた
Meaning
extremely good; wonderful; excellent
Example
The movie was absolutely fantastic!
映画は本当に素晴らしかった！
C2 noun /foʊ ˈpɑː/

faux pas

社会的な失敗
Meaning
a social blunder or mistake in etiquette
Example
He committed a major faux pas by forgetting her birthday.
彼は彼女の誕生日を忘れて大きな社会的な失敗を犯した。
B2 noun /ˈfɪks.tʃər/

fixture

固定物、設置された設備
Meaning
a permanent or fixed object, often in a house or building
Example
The bathroom fixture was installed yesterday.
バスルームの設備は昨日設置されました。
A1 noun /ˈfɑːðər/

father

幸福
Meaning
A male parent of a child.
Example
His father taught him how to ride a bicycle.
彼女は賞を受け取ったとき、その幸せを隠せなかった。
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。
B2 adjective /ˈfɔːlti/

faulty

欠陥のある
Meaning
Having defects or imperfections; not working properly
Example
The device stopped working because it was faulty.
その装置は欠陥のあるため動作を停止しました。
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 /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。
C2 adjective /ˈfɛkləs/

feckless

無能な, 責任感のない
Meaning
lacking initiative or strength of character; irresponsible
Example
His feckless attitude at work caused several missed deadlines.
彼の無能な態度が仕事でいくつかの期限を逃す原因となった。
C1 noun /fɪkˈseɪ.ʃən/

fixation

執着や過度な興味
Meaning
An obsessive interest in or feeling about someone or something.
Example
His fixation on perfectionism delayed project completion.
完璧主義への執着がプロジェクトの完了を遅らせた。
C2 verb /fɪˈlɪsɪˌteɪt/

felicitate

祝う
Meaning
to congratulate; to express good wishes
Example
We felicitated the graduating students at the ceremony.
私たちは式で卒業生を祝いました。
A1 adjective /ˈfeɪ.məs/

famous

有名
Meaning
Known about by many people; renowned.
Example
This area is famous for its unique heritage.
この地域はそのユニークな遺産で有名です。
B2 noun /fraɪt/

Fright

恐怖; 驚き; 驚愕
Meaning
a sudden intense feeling of fear; a shock or surprise that causes fear
Example
The loud thunder gave her such a fright that she dropped her coffee cup.
大きな雷の音で、彼女は恐怖を感じてコーヒーカップを落としました。
B2 noun ˈfrʌn.tɪərz

frontiers

最前線
Meaning
The extreme limit of settled land beyond which lies wilderness; the limits of knowledge or achievement in a particular field.
Example
The project pushes the frontiers of space exploration.
このプロジェクトは宇宙探査の最前線を押し広げています。
C1 noun fɔːlt ˈtɒl.ər.əns

fault-tolerance

フォールトトレランス
Meaning
The ability of a system to continue operating properly in the event of the failure of some of its components.
Example
Fault-tolerance ensures dependable systems.
フォールトトレランスは信頼性のあるシステムを保証します。
B2 noun /ˌfæs.ɪˈneɪ.ʃən/

Fascination

魅力; 魅了; 魅力的な興味
Meaning
the power to fascinate someone; the state of being intensely interested
Example
Her fascination with ancient history led her to become an archaeologist.
彼女の古代史への魅力は、彼女を考古学者にさせました。
A2 adjective, adverb /ˈfʊl taɪm/

full-time

フルタイム
Meaning
working or studying for the whole standard period of time
Example
She works full-time as a teacher.
彼女は教師としてフルタイムで働いています。
A1 noun /ˈfraɪ.deɪ/

friday

金曜日
Meaning
the day of the week following Thursday and preceding Saturday
Example
We have a team meeting every Friday afternoon.
私たちは毎週金曜日の午後にチーム会議があります。
C2 adjective /ˈfluːviəl/

fluvial

河川に関連する
Meaning
relating to or found in a river
Example
The fluvial deposits indicated the presence of an ancient river system.
河川堆積物は古代の川のシステムの存在を示していた。
B2 noun /fliːt/

fleet

艦隊
Meaning
a group of ships, vehicles, or aircraft operating together under one command
Example
The navy deployed its entire fleet for the exercise.
海軍は演習のためにその全艦隊を展開した。
C1 adjective /ˈfiːzəbl/

feasible

実行可能
Meaning
possible to do easily or conveniently; practical and workable
Example
It is feasible to complete the project within two months.
このプロジェクトを2ヶ月以内に完了することは実行可能です。
C1 verb/noun ˈfæð.əm

fathom

理解する
Meaning
To understand after much thought; to measure the depth of water; to comprehend.
Example
It is difficult to fathom the depths of the ocean.
海の深さを理解するのは難しい。
B2 adjective, noun /ˈfeɪʃəl/

facial

フェイシャル
Meaning
Relating to the face; a beauty treatment for the face
Example
She booked a facial at the spa.
彼女はスパでフェイシャルを予約しました。
B2 noun /ˈfɜː.tɪ.laɪ.zər/

fertilizer

肥料
Meaning
a substance added to soil to make plants grow more successfully
Example
Farmers use fertilizer to increase crop production.
農家は作物の生産量を増やすために肥料を使用します。