Faction
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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。
B2 noun /ˈfʌndˌreɪzɪŋ/

fundraising

資金調達
Meaning
the process of collecting money for a cause or project
Example
The organization is organizing a fundraising event.
その組織は資金調達イベントを開催しています。
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。
C2 adjective /ˈflɪpənt/

flippant

軽薄な
Meaning
not showing a serious or respectful attitude
Example
His flippant remarks annoyed the teacher.
彼の軽薄な発言は教師をイライラさせた。
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。
A2 noun fɔːrs

force

Meaning
A physical power or energy that can cause movement, change, or influence.
Example
Strong nuclear force binds particles.
強い核力が粒子を結びつける。
C1 verb /ˈfɪdʒɪt/

fidget

そわそわする、落ち着かない
Meaning
to make small movements, especially because of nervousness or impatience
Example
The child began to fidget during the long lecture.
子供は長い講義中に落ち着かなくなり始めました。
C2 adjective /fəˈsiːʃəs/

facetious

皮肉な
Meaning
Treating serious issues with deliberately inappropriate humor
Example
He was being facetious when he said he wanted to live on the moon.
彼は月に住みたいと言ったとき、皮肉を言っていた。
C1 noun /fruˈɪʃən/

fruition

実現
Meaning
The realization or fulfillment of a plan, project, or desire.
Example
Her dream of becoming a doctor finally came to fruition.
医者になるという彼女の夢はついに実現した。
A1 noun /fʊt/

Foot

Meaning
the lower extremity of the leg that is in direct contact with the ground in standing or walking
Example
She hurt her foot while running.
彼女は走っている間に足を怪我しました。
B2 verb /fɔːrˈsiː/

foresee

予見する
Meaning
To be aware of beforehand; to predict or expect.
Example
She could foresee the challenges ahead.
彼女は前方の課題を予見することができました。
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 /ˈfɜːr.tɪ.laɪz/

fertilize

肥料を施す
Meaning
to make soil or land more fertile by adding substances
Example
Farmers fertilize the fields to increase crop yield.
農家は作物の収穫量を増やすために畑に肥料を施す。
B2 noun /ˈfaɪbər/

fiber

繊維
Meaning
a thread or filament from which a textile is formed; dietary substance from plants that aids digestion
Example
Fruits and vegetables are high in fiber.
果物と野菜は繊維が豊富です。
A2 noun /ˈfæʃ.ən/

fashion

ファッション
Meaning
a popular or accepted style of clothing, behavior, or way of doing something
Example
She always keeps up with the latest fashion.
彼女はいつも最新のファッションを追いかけています。
A1 noun /fʌn/

fun

楽しみ
Meaning
enjoyment, amusement, or light-hearted pleasure
Example
We had a lot of fun at the party.
パーティーでとても楽しみました。
B2 verb /fraʊn/

frown

眉をひそめる
Meaning
to wrinkle one's brow in displeasure or concentration
Example
She frowned when she heard the bad news.
彼女は悪いニュースを聞いて、眉をひそめた。
B2 noun /ˈfɪlmˌmeɪkər/

film-maker

映画製作者
Meaning
A person who directs or produces films
Example
The film-maker received an award for his latest documentary.
映画製作者は最新のドキュメンタリーで賞を受賞しました。
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 /ˈfʌstɪən/

fustian

浮かれたスピーチ
Meaning
pompous or pretentious speech or writing; originally a type of thick cloth
Example
The politician's speech was filled with fustian and empty promises.
政治家のスピーチは浮かれた言葉と空っぽの約束でいっぱいだった。
B1 noun fəˈsɪl.ɪ.tiz

facilities

施設
Meaning
A place, amenity, or piece of equipment provided for a particular purpose.
Example
Facilities improve industrial productivity.
施設は産業の生産性を向上させます。
C2 noun /ˈfjʊr.ʌŋ.kəl/

Furuncle

ふるんくる; こぶ;
Meaning
a painful pus-filled bump under the skin caused by infected, inflamed hair follicles
Example
The doctor prescribed antibiotics to treat the painful furuncle on his neck.
医者は彼の首の痛みを伴うフルンクルを治療するために抗生物質を処方しました。
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。
B1 adjective /feɪld/

failed

失敗した
Meaning
not successful in achieving a desired result
Example
The project failed to meet the expectations.
プロジェクトは期待に応えることができませんでした。
C1 noun /foʊ/

foe

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。
B2 verb /fjuːz/

fuse

融合する
Meaning
To join or blend two or more things together into one.
Example
The two metals fused under high heat.
二つの金属は高温で融合した。
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 ˈfæl.ə.si

fallacy

誤り, 偽りの信念, 誤った推論
Meaning
False belief, misconception, false reasoning.
Example
The idea that success comes easy is a fallacy.
成功が簡単に得られるという考えは誤りです。
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。
C2 adjective /ˈflæb.i/

Flabby

柔らかくてだらしない; しっかり感や筋肉の張りがない; 弱い
Meaning
soft and loose; lacking firmness or muscle tone; weak
Example
His flabby arms showed he needed to exercise more.
彼のだらしない腕は、もっと運動する必要があることを示していました。
B2 noun /ˈfrʌn.tɪər/

frontier

境界または新しい分野
Meaning
A new area of activity, knowledge, or development; the edge of knowledge or achievement.
Example
Robotic surgery is exploring a new frontier in medicine.
ロボット手術は医学の新しいフロンティアを探求しています。
B1 noun /ˈfiːdbæk/

feedback

フィードバック
Meaning
information or opinions about how well someone is doing something
Example
She asked her teacher for feedback on her essay.
彼女はエッセイについて先生にフィードバックを求めました。
A1 verb /ˈfɒloʊ/

follow

従う
Meaning
to move behind someone or something; to go after or come after
Example
The children followed their teacher into the classroom.
子供たちは先生について教室に入りました。
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。
A1 verb /flaɪ/

fly

飛ぶ
Meaning
to move through the air using wings or in an aircraft
Example
Birds fly south for the winter.
鳥は冬に南へ飛ぶ。
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。
C2 verb /fleɪl/

flail

何かを激しく振る; 必死に動く
Meaning
to wave or swing something about wildly; to thrash about
Example
He flailed his arms to keep afloat in the water.
彼は水に浮かぶために腕を振った。
B2 noun /ˈfaʊn.dər/

Founder

創設者
Meaning
a person who establishes an institution or settlement; someone who starts or creates something
Example
Steve Jobs was the co-founder of Apple Inc. and revolutionized personal computing.
スティーブ・ジョブズはApple Inc.の共同創設者で、個人用コンピュータを革新しました。
B2 verb /ˈflʌrɪʃ/

flourish

Meaning
To grow or develop in a healthy or successful way.
Example
Her business began to flourish after she introduced online sales.
A2 adjective /ˈfæstɪst/

fastest

最速の
Meaning
moving or capable of moving at the highest speed
Example
Usain Bolt is the fastest runner in the world.
ウサイン・ボルトは世界で最も速いランナーです。
C2 adjective /fækˈtɪʃəs/

factitious

人工的な、真実ではない
Meaning
artificial or fabricated; not natural or genuine
Example
The excitement in his story seemed factitious and forced.
彼の話の興奮は人工的で強制的に見えました。
C2 adjective /ˈfætʃuəs/

fatuous

愚か
Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
会議中に彼の愚かなコメントは皆を苛立たせました。
B1 adjective /ˈfrʌstreɪtɪŋ/

frustrating

苛立たしい
Meaning
causing annoyance or dissatisfaction
Example
The slow internet connection was really frustrating.
遅いインターネット接続は本当に苛立たしかった。
C2 adjective /ˈfɒksi/

foxy

ずるい
Meaning
Clever, cunning, or attractive.
Example
He came up with a foxy plan to win the game.
彼はゲームに勝つためにずるい計画を思いついた。
C2 noun /fez/

Fez

フェズ
Meaning
a cone-shaped red hat with a tassel, traditionally worn by men in some Middle Eastern countries
Example
The traditional costume included a red fez with a black tassel.
伝統的な衣装には、黒い房付きの赤いフェズが含まれていました。
C1 verb /ˈfɜːrmɛnt/

ferment

化学的なプロセスを経て、糖分がアルコールや酸に変換されること; 変化を促進または引き起こすこと
Meaning
to undergo a chemical process where sugars are converted to alcohol or acid; to incite or stir up change
Example
The grapes are left to ferment for several weeks.
ぶどうは数週間発酵させられます。
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。
A2 noun /fiːld/

field

フィールド
Meaning
an area of open land, often used for farming, sports, or scientific study
Example
The children played football in the field.
子供たちはフィールドでサッカーをしました。
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。
C2 noun /fækˈtoʊtəm/

factotum

オールラウンダー
Meaning
an employee who does many different types of work; a general servant
Example
He worked as a factotum, handling both clerical and maintenance duties.
彼はファクトトムとして働き、事務的な仕事とメンテナンス作業の両方を担当していました。
B2 noun /ˈfɛə(r)nɪs/

fairness

公平
Meaning
the quality of being free from bias, favoritism, or injustice
Example
She always strives for fairness in her decisions.
彼女は常に自分の決定に公平さを求めています。
B2 noun /ˈfeɪbəl/

fable

寓話
Meaning
a short story, typically featuring animals as characters, that conveys a moral lesson
Example
Aesop’s fables are famous for teaching valuable lessons through simple stories.
イソップの寓話は、簡単な物語を通して貴重な教訓を教えることで有名です。
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。
B1 adjective /ˈflek.sə.bəl/

Flexible

柔軟な; 変更に適応可能
Meaning
able to bend easily; adaptable to change; not rigid
Example
She has a flexible work schedule that allows her to work from home.
彼女は自宅で働ける柔軟な仕事のスケジュールを持っています。
C1 adjective /ˈflʌstərd/

flustered

動揺した
Meaning
in a state of confusion or agitation
Example
She appeared flustered after being asked so many questions.
彼女はたくさんの質問をされた後、動揺しているように見えました。
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。
C2 noun /ˈflɪpənsi/

flippancy

軽薄
Meaning
lack of seriousness; showing a disrespectful or trivial attitude
Example
His flippancy during the meeting offended his colleagues.
会議中の彼の軽薄さは、同僚を不快にさせた。
B1 adjective /ˈfæʃənəbəl/

fashionable

流行の
Meaning
Following the latest styles or trends in clothing, behavior, or ideas
Example
She always wears fashionable clothes to every party.
彼女は毎回のパーティーで常にファッショナブルな服を着ています。
A2 adjective /fəˈmɪl.jər/

Familiar

馴染みのある; 親しみやすい; インフォーマルで友好的
Meaning
well-known; easily recognized; having knowledge of; informal and friendly
Example
This song sounds familiar to me.
この歌は私には馴染みがあるように感じます。
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。
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。
B2 noun/verb /ˈfɒs.tər.ɪŋ/

fostering

育成
Meaning
The process of encouraging or promoting the development or growth of something; nurturing and caring for.
Example
Good teachers play a key role in fostering creativity in students.
良い教師は学生の創造性を育む上で重要な役割を果たします。
A2 adverb /fɔːrˈɛvər/

forever

永遠
Meaning
For all future time; for always.
Example
She promised to love him forever.
彼女は永遠に彼を愛すると約束した。
C2 adjective /ˈfʌsti/

fusty

かび臭い、古臭い
Meaning
smelling stale, damp, or stuffy; old-fashioned
Example
The room smelled fusty after being closed for months.
部屋は数ヶ月間閉め切られていた後、かび臭くなった。
A2 noun /frʌnt/

front

前面
Meaning
the forward-facing part of something
Example
The house has a garden in front.
家の前に庭があります。
C2 adjective /ˈfæləbl/

fallible

誤りを犯しやすい
Meaning
capable of making mistakes or being wrong
Example
Even experts are fallible and can make errors.
専門家でさえ、誤りを犯し、エラーをすることがあります。
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。
A2 noun/adjective /ˈfiːmeɪl/

female

Meaning
a person or animal of the sex that can bear offspring; relating to women or girls
Example
The female lion protects her cubs fiercely.
メスライオンは自分の子供たちを必死に守ります。
C1 noun /ˈfjuː.də.lɪ.zəm/

feudalism

封建制度
Meaning
the social system in medieval Europe in which people worked and fought for nobles who gave them protection and land in return
Example
Feudalism shaped the political structure of medieval Europe.
封建制度は中世ヨーロッパの政治構造を形作った。
C1 adjective /ˈfliː.tɪŋ/

fleeting

儚い
Meaning
Lasting for a very short time; passing quickly.
Example
Happiness can be fleeting, so cherish every moment.
幸せは儚いものである可能性があるので、すべての瞬間を大切にしてください。
C2 verb /ˈfjuːmɪˌɡeɪt/

fumigate

燻蒸する
Meaning
to disinfect or purify an area by using chemical fumes
Example
They fumigated the warehouse to kill the insects.
彼らは昆虫を殺すために倉庫を燻蒸しました。
B2 noun /ˈfɜːrneɪs/

furnace

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。
C2 adjective /ˈfraʊzi/

frowzy

だらしない
Meaning
Unkempt, messy, or having a musty, unpleasant smell.
Example
He entered the room with a frowzy appearance after sleeping on the couch.
彼はソファで寝た後、だらしない外見で部屋に入ってきました。
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。
B2 verb /fɔːrdʒ/

forge

鍛造する、偽造する
Meaning
to create or shape something, often with effort or skill; also to counterfeit or fake something
Example
The blacksmith forged a strong sword from the iron.
鍛冶屋は鉄から強力な剣を鍛えました。
C2 noun /ˈfæn.feər/

fanfare

大々的な展示, 宣伝
Meaning
a short ceremonial tune or display of publicity to attract attention
Example
The new product was launched with much fanfare.
新しい製品は盛大なファンファーレで発売されました。
B1 noun /ˈfɪkʃən/

fiction

フィクション
Meaning
Literature created from the imagination, not presented as fact.
Example
She enjoys reading science fiction novels.
彼女はサイエンスフィクション小説を読むのが好きです。
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。
B1 noun /ˈflaʊər veɪs/

Flower-vase

花瓶
Meaning
a decorative container used to hold cut flowers
Example
She placed beautiful roses in the flower vase on the table.
彼女はテーブルの上に花瓶に美しいバラを置きました。
C2 noun /ˈfʊl.krəm/

fulcrum

支点
Meaning
The point or support on which a lever pivots; a central or essential point of activity or support.
Example
The teacher became the fulcrum of change in the school.
教師は学校の変革の支点となった。
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 ˈfɔːrɪsts

Forests

Meaning
Large areas covered with trees and undergrowth, providing natural habitats for wildlife.
Example
Forests provide shelter and food for butterflies.
森は蝶々にとって避難所と食料を提供します。
C1 verb /ˈfɔːrtɪˌfaɪ/

fortify

強化する
Meaning
To strengthen a place, person, or thing physically or mentally.
Example
They fortified the city walls to protect against invasion.
彼らは侵略に備えて街の壁を強化しました。
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。
B1 noun /ˈfeɪ.ljər/

Failure

失敗
Meaning
lack of success; an unsuccessful person, enterprise, or thing
Example
The project's failure was due to poor planning and communication.
プロジェクトの失敗は、計画とコミュニケーションの不備によるものでした。
B1 noun /ˌfɜːrst ˈeɪd/

first aid

応急処置
Meaning
Immediate assistance given to a sick or injured person until full medical treatment is available
Example
He gave first aid to the injured cyclist before the ambulance arrived.
彼は救急車が来る前に、負傷した自転車乗りに応急処置を施した。
B2 adverb /ˈfræŋkli/

Frankly

率直に; 正直に;
Meaning
honestly; openly; in a direct manner
Example
Frankly, I think this plan needs more consideration.
率直に言うと、この計画にはもっと考慮が必要だと思います。
B1 noun /feɪk/

Fake

偽物; 詐欺; 偽の物
Meaning
a thing that is not genuine; a forgery or sham
Example
The painting was discovered to be a fake worth very little money.
その絵画は偽物であると発見され、その価値は非常に低かった。
A2 adjective, adverb /ˈfæstər/

faster

速い
Meaning
moving or able to move quickly; more quickly than usual
Example
This car is faster than the old one.
この車は古い車より速いです。
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。
A1 noun ˈflaʊərz

Flowers

Meaning
The reproductive structures of plants that provide nectar for butterflies.
Example
Butterflies are attracted to colorful flowers.
蝶々は色とりどりの花に引き寄せられる。
C2 noun /fiːf/

fief

封建制度の下で保有される土地; 支配領域または制御区域
Meaning
an estate of land held under the feudal system; a domain or area of control
Example
The knight was granted a fief by the lord for his service.
騎士はそのサービスに対して領主から封土を与えられました。
C2 noun /ˈflɒtsəm/

flotsam

漂流物
Meaning
Floating debris from a shipwreck or things discarded and left floating.
Example
The beach was littered with flotsam after the storm.
嵐の後、ビーチは漂流物で埋め尽くされていた。
C2 noun /ˈflɛdʒlɪŋ/

fledgeling

若鳥
Meaning
A young bird that has just developed its feathers and is learning to fly; a beginner.
Example
The fledgeling was trying hard to take its first flight.
若鳥は最初の飛行をしようとしていました。
A1 adjective /ˈfrɛndli/

friendly

幸福
Meaning
Kind and pleasant; showing goodwill and affection.
Example
The shop owner is very friendly to new customers.
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。
A1 noun /ˈflaʊər/

flower

Meaning
the seed-bearing part of a plant, often colorful and fragrant, that blossoms
Example
The garden was full of colorful flowers.
庭はカラフルな花でいっぱいでした。
B1 noun /ˈfeɪ.vər/

Favour

好意; 手伝い; 親切
Meaning
approval, support, or liking for someone or something; a kind or helpful act
Example
Could you do me a favour and help me move this heavy box?
この重い箱を動かす手伝いをしてくれませんか?
C2 noun /ˈfeɪ.tə.lɪ.zəm/

fatalism

運命論
Meaning
the belief that all events are predetermined and inevitable
Example
He embraced fatalism, believing that nothing he did could change his destiny.
彼は運命論を受け入れ、自分の行動が運命を変えることはできないと信じていました。
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。
B2 adjective /fəˈbɪd.ən/

Forbidden

禁止された; 違法な
Meaning
not allowed; prohibited; banned
Example
Smoking is strictly forbidden in this building.
この建物では喫煙が厳しく禁止されています。
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。
A1 noun/verb /fɪʃ/

fish

幸せ
Meaning
an aquatic animal with gills, or to try to catch such animals
Example
He went to the lake to fish early in the morning.
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。
B2 adjective, verb (present participle) /ˈfloʊtɪŋ/

floating

浮かんでいる
Meaning
remaining on the surface of a liquid without sinking; moving lightly or freely
Example
The boat was floating gently on the calm lake.
ボートは穏やかな湖の上で優しく浮かんでいた。
C2 adjective /fjuːˈnɪəriəl/

funereal

葬儀的
Meaning
having the mournful, somber character of a funeral
Example
The room was filled with a funereal silence after the announcement.
発表後、部屋は葬儀的な静けさで満たされた。
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。
B2 noun /ˈfleɪ.vər/

Flavour

風味
Meaning
the distinctive taste of a food or drink; a particular quality or atmosphere
Example
The soup had a rich flavour of herbs and spices from the garden.
スープには庭からのハーブとスパイスの豊かな風味がありました。
B2 noun /fɔːrt/

Fort

Meaning
a strong building or group of buildings where soldiers live and defend
Example
The ancient fort stood on top of the hill for centuries.
古代のフォートは何世代にもわたって丘の上に立っていました。
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。
C2 noun /flɔːˈrɛsəns/

florescence

花の開花期
Meaning
The process, state, or period of flowering.
Example
The garden reached its peak florescence in spring.
庭は春に最盛期の花の開花期に達しました。
B1 noun /ˈfjuː.əl/

Fuel

燃料
Meaning
a material such as coal, gas, or oil that is burned to produce heat or power
Example
The rising cost of fuel has affected transportation and heating expenses worldwide.
燃料の価格上昇は、世界中の輸送と暖房費に影響を与えました。
A1 adjective/verb/adverb /friː/

free

自由
Meaning
Not under the control or in the power of another; able to act or be done as one wishes.
Example
The children are free to play outside.
子供たちは外で自由に遊べます。
B2 verb /flɪk/

flick

素早く叩く
Meaning
to move or cause to move with a sudden quick motion
Example
He flicked the switch to turn on the light.
彼はライトをつけるためにスイッチをフリックしました。
C2 noun /ˈfɔːltˌfaɪndər/

faultfinder

欠点探し人
Meaning
a person who habitually finds fault with others
Example
He is such a faultfinder that nothing anyone does is ever good enough.
彼は欠点探し人で、誰かが何かをしても決して十分ではありません。
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。
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 /ˈfetiʃ/

fetich

フェティッシュ
Meaning
an object believed to have magical powers or to be inhabited by a spirit
Example
The villagers treated the statue as a powerful fetich.
村人たちはその像を強力なフェティッシュとして扱っていました。
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 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。
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/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。
B2 noun/verb /flɑːk/

flock

群れ
Meaning
a group of birds or animals; to gather or move in a crowd
Example
Tourists flocked to the beach during summer.
観光客は夏にビーチに集まりました。