bathymetry
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C2 noun /bəˈθɪm.ə.tri/

bathymetry

水深測定学
Meaning
The measurement of depth of water in oceans, seas, or lakes.
Example
Bathymetry is essential for understanding oceanic topography.
バチメトリーは海洋の地形を理解するために不可欠です。
C1 noun /brɪˈɡeɪd/

brigade

消防隊
Meaning
A large group of people organized for a specific purpose, especially a military unit.
Example
The fire brigade arrived quickly to put out the flames.
消防隊は火を消すために迅速に到着しました。
C2 verb /beɪt/

bate

減らす、抑える
Meaning
to lessen or restrain; to diminish the force or intensity of something
Example
He spoke with bated breath as he waited for the result.
彼は結果を待ちながら息を呑んで話した。
C2 noun /ˈbreɪziər/

Brazier

真鍮職人
Meaning
a worker in brass; a portable container for burning charcoal or coal
Example
The brazier crafted beautiful brass ornaments.
その真鍮職人は美しい真鍮の装飾品を作りました。
B2 noun /ˈbrʌðərhʊd/

brotherhood

兄弟愛
Meaning
The relationship between brothers; an association of people with common interests
Example
The soldiers shared a strong sense of brotherhood.
兵士たちは強い兄弟愛を共有していました。
C2 noun /ˈbroʊmiːn/

bromine

ブロミン
Meaning
a dark red, dense, toxic liquid element used in making dyes, flame retardants, and medications
Example
Bromine is commonly used in water treatment chemicals.
ブロミンは水処理化学薬品に一般的に使用されます。
C2 verb /bɪˈfaʊl/

befoul

汚染する
Meaning
to make dirty or polluted; to disgrace or corrupt
Example
The factory waste befouled the river.
工場の廃棄物が川を汚染した。
B1 noun /ˈbʊt.ʃər/

Butcher

肉屋
Meaning
a person whose job is cutting up and selling meat in a shop
Example
The butcher recommended the best cut of beef for our dinner.
肉屋は私たちの夕食のために最高の牛肉の切り身を勧めました。
B1 noun /ˈbæɹɪəz/

barriers

障壁
Meaning
Something that prevents progress or access; obstacles or hindrances.
Example
Language barriers can make communication difficult.
言語の壁がコミュニケーションを困難にすることがあります。
C2 noun /buːb/

boob

ばか者；胸（俗語）
Meaning
a foolish or clumsy person; an informal and sometimes rude term for a woman's breast
Example
He felt like a complete boob after forgetting the meeting.
会議を忘れて、彼は完全なばか者だと感じた。
C1 adjective /bɪˈrɛft/

bereft

失われた
Meaning
Deprived of or lacking something, especially a nonmaterial asset.
Example
After the betrayal, he felt bereft of hope and trust.
裏切りの後、彼は希望と信頼を失ったと感じた。
C2 verb /bɪˈɡaɪl/

beguile

魅了する / 欺いて引きつける
Meaning
to charm or enchant someone, often in a deceptive way
Example
She beguiled the audience with her storytelling.
彼女はストーリーテリングで観客を魅了した。
C2 verb /bɪˈnʌm/

benumb

麻痺させる
Meaning
to make physically numb or without sensation; to make mentally dull or insensitive
Example
The freezing wind seemed to benumb his fingers within minutes.
凍える風が数分で彼の指を麻痺させた。
B1 noun /ˈbeɪs.mənt/

Basement

地下室
Meaning
the lowest floor of a building, typically below ground level
Example
We store old furniture in the basement.
古い家具は地下室に保管されています。
B2 adjective /bɪˈlʌvɪd/

beloved

愛されている
Meaning
dearly loved, highly regarded
Example
She was the beloved queen of the kingdom.
彼女は王国の愛されている女王でした。
C1 verb /bɪˈmoʊn/

bemoan

嘆く
Meaning
To express discontent or sorrow over something.
Example
Critics bemoaned the lack of diversity in the film.
批評家たちは映画の多様性の欠如を嘆いた。
B2 noun /ˈbɒtəni/

botany

植物学
Meaning
the scientific study of plants
Example
She is studying botany at the university.
彼女は大学で植物学を学んでいます。
B2 verb, noun, adjective /baʊnd/

bound

制限された / 縛られた
Meaning
To move with large strides or jumps; also refers to being tied, limited, or certain.
Example
The dog bounded across the field with joy.
犬は喜んでフィールドを跳ねました。
A2 noun /ˈbɪznəsˌwʊmən/

businesswoman

実業家の女性
Meaning
a woman who works in business, especially one who owns or manages a company
Example
The businesswoman expanded her company into international markets.
その実業家の女性は会社を国際市場へ拡大した。
C2 noun /bɪsk/

bisque

シーフードスープ
Meaning
A rich, creamy soup made from shellfish.
Example
We ordered lobster bisque at the restaurant.
レストランでロブスタービスクを注文しました。
B2 noun/verb /bʌk/

buck

Meaning
A male deer; also to resist or oppose strongly.
Example
The horse began to buck wildly as the rider tried to hold on.
B2 noun /braɪb/

Bribe

賄賂
Meaning
a sum of money or something valuable given to someone to persuade them to do something dishonest or illegal
Example
The corrupt official was caught accepting a bribe from the construction company.
その腐敗した役人は建設会社からの賄賂を受け取っているところを捕まえられました。
A1 verb /brɪŋ/

bring

持ってくる
Meaning
to carry or take something to a place; to come with something
Example
Please bring your books to class tomorrow.
明日、クラスに本を持ってきてください。
C2 noun /brɔːn/

brawn

体力
Meaning
physical strength in contrast to intelligence
Example
He used his brawn to lift the heavy box.
彼は重い箱を持ち上げるために体力を使いました。
A2 noun /brænd/

brand

ブランド
Meaning
a type of product manufactured by a company under a particular name
Example
Nike is a popular brand of sportswear.
ナイキは人気のあるスポーツウェアブランドです。
C2 verb /bɪˈtroʊð/

betroth

婚約する
Meaning
To formally promise to marry someone; to engage.
Example
He was betrothed to the princess at a young age.
彼は若い頃、王女と婚約していた。
B1 noun /ˈbaɪər/

buyer

買い手
Meaning
a person who makes a purchase
Example
The buyer inspected the car before making payment.
買い手は支払い前に車を検査しました。
C1 verb, noun /ˈbreɪnˌwɒʃ/

brainwash

洗脳する
Meaning
to manipulate someone into adopting certain beliefs by repeated pressure or propaganda; the act or process of such manipulation
Example
The group tried to brainwash new members with constant propaganda.
その団体は新しいメンバーを洗脳しようとした。
C2 noun /ˈbʌt.ə.flaɪ piː/

Butterfly Pea

蝶豆
Meaning
a blue flowering plant with butterfly-shaped flowers, used to make herbal tea
Example
Butterfly pea flowers turn tea into a beautiful blue color.
蝶豆の花はお茶を美しい青色に変えます。
C2 noun brəˈvɑː.dəʊ

bravado

実際ではない勇気や自信の誇示
Meaning
Show of courage or confidence that is not real.
Example
His bravado masked his nervousness before the performance.
彼のブラヴァードはパフォーマンス前の緊張を隠していた。
C1 noun /ˈbɔɪənsi/ or /ˈbuːjənsi/

buoyancy

浮力, 快活
Meaning
The ability to float in a liquid; cheerfulness and optimism.
Example
Her natural buoyancy lifted the mood of the group.
彼女の自然な快活さがグループの雰囲気を高めた。
B1 noun /blaʊz/

Blouse

ブラウス
Meaning
a woman's loose upper garment resembling a shirt
Example
She wore a beautiful silk blouse to the party.
彼女はパーティーに美しいシルクのブラウスを着て行った。
C2 adjective /boʊˈhiːmiən/

bohemian

ボヘミアン
Meaning
unconventional, artistic, and free-spirited in lifestyle or appearance
Example
She decorated her apartment in a bohemian style with colorful fabrics.
彼女はカラフルな布でボヘミアンスタイルでアパートを飾りました。
C2 verb /bɪˈliːɡər/

beleaguer

包囲する, 困らせる
Meaning
to cause difficulties, troubles, or harassment; to surround with military forces
Example
The company was beleaguered by constant complaints from its customers.
その会社は顧客からの絶え間ない苦情で包囲されていた。
C1 noun /brʌnt/

brunt

主な影響
Meaning
the worst part or main impact of something unpleasant
Example
The small town bore the brunt of the storm.
小さな町は嵐の主な影響を受けました。
C2 noun /ˈbrɪk.bæt/

Brickbat

レンガの破片; 厳しい批判または非難
Meaning
a piece of brick, especially one used as a missile; harsh criticism or censure
Example
The angry protesters threw brickbats at the building windows.
怒った抗議者たちは建物の窓にレンガの破片を投げた。
C2 noun /ˈbuːbi/

booby

ばか
Meaning
a foolish or gullible person; a silly individual
Example
He felt like a booby after making such a simple mistake.
そんな簡単な間違いをして、彼は自分をばかだと感じた。
B1 adjective /brɔːd/

Broad

広い; 広大な; 広い範囲をカバーする
Meaning
wide; extensive; covering a large area
Example
The river is very broad at this point.
この地点で川は非常に広いです。
C1 adjective /bəˈnɑːl/ or /ˈbeɪnəl/

banal

平凡
Meaning
Lacking originality; boringly obvious and commonplace.
Example
His speech was full of banal clichés.
彼のスピーチは平凡なクリシェでいっぱいだった。
C1 verb /bɪˈhoʊld/

behold

見る；目にする
Meaning
to see or observe something, especially something remarkable or impressive
Example
She stood quietly to behold the sunrise over the hills.
彼女は丘の上の日の出を見るために静かに立っていた。
C2 adjective /bɪˈsɒtɪd/

besotted

夢中な、恋に狂った
Meaning
strongly infatuated or obsessed with someone or something
Example
He was completely besotted with her charm.
彼は彼女の魅力に完全に夢中だった。
A2 noun /ˈbʌk.ɪt/

Bucket

バケツ
Meaning
a roughly cylindrical open container with a handle, used to hold and carry liquids
Example
The farmer filled the bucket with fresh water from the well.
農夫は井戸から新鮮な水でバケツを満たしました。
C2 noun /bjuːt/

butte

ビュート
Meaning
an isolated hill with steep sides and a flat top, common in arid regions
Example
The travelers could see a tall butte rising in the desert.
旅行者たちは砂漠の中に高いビュートが立ち上るのを見ることができました。
C2 verb /bɪˈfʌdəl/

befuddle

混乱させる
Meaning
to confuse someone completely; to make someone unable to think clearly
Example
The complex instructions befuddled the students.
複雑な指示が学生たちを混乱させました。
B2 noun /ˈbætʃələr/

Bachelor

独身男性; 大学の学位を持つ人
Meaning
an unmarried man; a person who holds a first degree from a university
Example
He remained a bachelor all his life and earned a bachelor's degree in engineering.
彼は一生独身で、工学の学位を取得しました。
B2 verb /blɛnd/

blend

混ぜる
Meaning
to mix things together smoothly; to combine harmoniously
Example
She blends the ingredients carefully.
彼女は慎重に材料を混ぜます。
A2 noun, verb /bɑːr/

bar

バー, ブロックする
Meaning
a counter where drinks are served; to prevent or block
Example
They decided to meet at the bar after work.
仕事の後、バーで会うことに決めました。
A1 noun /biːtʃ/

beach

ビーチ
Meaning
An area of sand or small stones beside the sea or a lake.
Example
They spent the day relaxing on the beach.
彼らはビーチでリラックスして一日を過ごしました。
C2 noun /bɑːrd/

bard

詩人
Meaning
a poet, traditionally one reciting epics and associated with oral traditions
Example
Shakespeare is often called the Bard of Avon.
シェイクスピアはしばしばアヴォンの詩人と呼ばれます。
A2 noun /ˈbʊkstɔːr/

bookstore

書店
Meaning
a shop where books are sold
Example
She spent an entire afternoon browsing in the bookstore.
彼女は午後ずっと書店で過ごした。
B2 noun /bluːz/

blues

ブルース
Meaning
a feeling of sadness; a style of music with melancholy themes
Example
Listening to blues music always calms him down.
ブルース音楽を聴くと、いつも彼を落ち着かせる。
C2 noun ˌbaɪ.oʊ.əˈveɪ.lə.bɪl.ə.ti

bioavailability

体内吸収能力
Meaning
The degree to which a substance can be absorbed and used by the body.
Example
Turmeric's bioavailability increases when consumed with black pepper.
ターメリックのバイオアベイラビリティは、黒コショウと一緒に摂取することで増加します。
C1 noun /bəˈtæljən/

battalion

大隊
Meaning
A large body of soldiers ready for battle, typically consisting of several companies.
Example
The battalion was deployed to the front line.
その大隊は前線に展開されました。
C1 noun /bəˈrɑːʒ/

barrage

集中攻撃または速攻
Meaning
a concentrated outpouring of questions, criticisms, or blows; a rapid, continuous attack
Example
The politician faced a barrage of tough questions from reporters.
政治家は記者からの厳しい質問の集中攻撃に直面していました。
A2 adjective /ˈbeɪ.sɪk/

Basic

基本的な; 基礎的な;
Meaning
fundamental; essential; forming the foundation or starting point
Example
Learning basic English grammar is essential for beginners.
基本的な英語の文法を学ぶことは初心者にとって不可欠です。
A1 noun /bəˈnæn.ə/

Banana

バナナ
Meaning
a long curved fruit with yellow skin and soft sweet flesh
Example
Bananas are a good source of potassium.
バナナはカリウムの良い供給源です。
B2 noun /ˈbɜːrdn/

burden

負担
Meaning
a heavy load, especially one that is difficult to carry
Example
The financial burden was too heavy for him to bear.
財政的な負担は彼にとって非常に重かった。
C2 noun /bəˈlɛəroʊ/

bolero

ボレロ（スペインのダンスまたは前が開いた短いジャケット）
Meaning
A Spanish dance in slow triple time, or a short jacket open at the front.
Example
The dancers performed a passionate bolero at the festival.
ダンサーたちはフェスティバルで情熱的なボレロを演奏しました。
C2 noun /bɒmˈbeɪ dʌk/

Bombay duck

ボンベイフィッシュ
Meaning
a type of lizardfish found in coastal waters, commonly eaten dried and salted in South Asia
Example
Bombay duck is a popular delicacy when dried and fried.
ボンベイダックは乾燥して揚げると人気の珍味です。
C2 adjective /bɒmˈbæstɪk/

bombastic

派手な
Meaning
using pompous or inflated language with little meaning
Example
The professor’s bombastic lecture impressed no one.
教授の派手な講義は誰にも印象を与えませんでした。
C1 verb /ˈbɛkən/

beckon

手招きする
Meaning
to signal or call someone to come closer, often with a gesture; to attract or invite
Example
She beckoned him to come closer with a wave of her hand.
彼女は手を振って彼に近くへ来るよう合図した。
A2 adverb /bɪˈjɒnd/

Beyond

超えて; 定められた範囲を越える;
Meaning
further away than; exceeding; more than
Example
The mountains stretched beyond the horizon.
山々は地平線を越えて広がっていた。
C1 verb /bɪˈwɪldər/

bewilder

困惑させる
Meaning
to cause someone to be confused or puzzled
Example
The complex instructions bewildered the students.
複雑な指示は学生を困惑させました。
C2 noun /ˈbɑːrtərər/

barterer

物々交換者
Meaning
A person who trades goods or services without using money.
Example
The barterer exchanged fruits for some pottery.
物々交換者は果物を陶器と交換しました。
B2 noun /bent/

Bent

傾向; 特徴
Meaning
a natural inclination or talent; a strong interest or liking for something
Example
She has a natural bent for music and art.
彼女は音楽と芸術に自然な傾向があります。
A2 noun /ˈbeɪsˌbɔːl/

baseball

ベースボール
Meaning
a sport in which two teams try to score runs by hitting a ball and running around bases
Example
He loves watching baseball games on TV.
彼はテレビで野球の試合を見るのが好きです。
C1 noun /ˈbaɪ.laɪn/

byline

作家の名前の行
Meaning
A line in a newspaper or magazine article that names the writer.
Example
Her byline appeared on the front page of the newspaper.
彼女の名前は新聞の一面に載っていました。
B2 noun /biːm/

beam

光線 / 梁
Meaning
a ray or shaft of light; a long piece of wood or metal used to support weight
Example
A beam of sunlight entered through the window.
一筋の光線が窓から入ってきた。
C2 noun /baɪt/

bight

入り江
Meaning
A bend or curve in a geographical feature, especially a coastline, or a loop in a rope.
Example
The sailors anchored in the calm waters of the bight.
船員たちは入り江の穏やかな水域でアンカーを下ろした。
C1 noun /ˈbuːt.stræp.ɪŋ/

bootstrapping

自己資金による起業
Meaning
Starting a business with personal resources or small investments without external funding or venture capital.
Example
Many entrepreneurs rely on bootstrapping to launch their businesses.
多くの起業家はビジネスを立ち上げるためにブートストラッピングに依存しています。
C2 verb /ˈbɜːrdʒən/

burgeon

急速に成長する
Meaning
To grow or develop rapidly; to flourish.
Example
The city's population began to burgeon after the new factory opened.
新しい工場が開設されてから、都市の人口は急速に増加し始めました。
C1 adjective/verb /ˈbæntərɪŋ/

bantering

冗談を言う
Meaning
characterized by good-humored teasing or joking
Example
They had a bantering conversation at the café.
彼らはカフェで冗談交じりの会話をしていた。
C1 adjective /ˈbaɪtɪŋ/

Biting

噛む; 鋭い寒さ; 厳しい批評
Meaning
extremely cold; sharply critical or harsh
Example
The biting cold made everyone shiver.
鋭い寒さで皆が震えた。
A1 noun /boʊt/

Boat

ボート
Meaning
a small vessel for traveling over water
Example
We took a small boat to cross the river.
私たちは川を渡るために小さなボートに乗りました。
B2 noun /ˈbrɛkdaʊn/

breakdown

故障
Meaning
a failure or collapse of a system or machinery
Example
The car had a breakdown on the highway.
車は高速道路で故障しました。
B2 noun/verb /ˈbʌfər/

buffer

バッファ / 衝撃吸収
Meaning
Something that lessens or absorbs the impact of a shock; to act as a protective barrier.
Example
The organization acts as a buffer between workers and management.
その組織は労働者と経営陣の間のバッファとして機能します。
C2 verb /bɪˈsiːtʃ/

beseech

懇願する
Meaning
To ask someone urgently and fervently to do something; to beg.
Example
He beseeched the judge for mercy.
彼は裁判官に慈悲を請いました。
C1 noun, verb /ˈbʌtrəs/

buttress

支柱, 支え
Meaning
a structure built against a wall for support; to support or strengthen
Example
The cathedral walls were buttressed to prevent collapse.
大聖堂の壁は崩壊を防ぐために支えられていました。
C2 verb /ˈblʌstər/

bluster

大声で自慢する
Meaning
to speak loudly in an aggressive or threatening way, often without real power
Example
The manager blustered about firing people but did nothing.
マネージャーは人を解雇すると大声で言ったが、何もしなかった。
A2 noun /biː/

Bee

蜂
Meaning
a flying insect that produces honey and can sting
Example
The bee collected nectar from the flower.
蜂は花から蜜を集めました。
B2 noun /beɪs/

bass

低い男性の声 / ベースギター
Meaning
the lowest adult male singing voice; also, low-frequency sounds in music or a type of fish
Example
He played the bass guitar at the concert.
彼はコンサートでベースギターを弾いた。
C2 noun /bəˈkuːl/

Bakul

バクルの花
Meaning
a fragrant white flower native to South Asia, scientifically known as Mimusops elengi
Example
The sweet fragrance of bakul flowers filled the evening air in the village.
バクルの花の甘い香りが村の夕方の空気を満たしていた。
B1 verb /ˈbrɔːdˌkæst/

broadcast

放送する
Meaning
to transmit a program or information by radio, television, or online media
Example
The match was broadcast live on television.
試合はテレビで生放送されました。
C2 verb /bɪˈwɪtʃ/

bewitch

魅了する
Meaning
to enchant or fascinate someone as if by magic
Example
The dancer's performance bewitched the audience.
ダンサーのパフォーマンスは観客を魅了した。
C2 adjective /ˈbrɪndl̩d/

brindled

ぶち模様
Meaning
Having a brownish or tawny color with streaks or spots of another color.
Example
The farmer owned a brindled cow with distinctive stripes.
農家は特徴的なストライプのあるぶち模様の牛を飼っていた。
C2 noun /blæk ˈkɑːr.də.məm/

Black Cardamom

黒カルダモン
Meaning
a large aromatic spice pod with a smoky flavor, commonly used in Indian and Middle Eastern cooking
Example
Add black cardamom to the curry for a rich, smoky flavor.
カレーに黒カルダモンを加えて、リッチでスモーキーな風味を楽しんでください。
B2 adjective /boʊld/

Bold

大胆; 自信; 勇敢
Meaning
brave; confident; daring
Example
He made a bold decision to start his own business.
彼は自分のビジネスを始めるために大胆な決断を下しました。
B2 noun, verb /ˈblɒsəm/

blossom

花が咲く
Meaning
a flower or mass of flowers on a tree or plant; to develop or flourish
Example
The small garden began to blossom in spring.
小さな庭は春に花が咲き始めた。
C2 noun /ˈbʊlwərk/

bulwark

防壁
Meaning
A strong wall or defensive structure; something that provides protection or support.
Example
The fortress walls served as a bulwark against enemy attacks.
砦の壁は敵の攻撃に対する防壁として機能していた。
C2 verb /bɪˈsmɜːrtʃ/

besmirch

汚す
Meaning
to damage someone's reputation; to make dirty or stained
Example
He tried to besmirch her good name with false rumors.
彼は虚偽の噂で彼女の良い名前を汚そうとした。
C1 noun/verb /brʊk/

brook

小川 / 容認する
Meaning
As a noun: a small natural stream; As a verb: to tolerate or endure something
Example
The village was built near a clear brook.
その村は清らかな小川の近くに建てられました。
B2 verb /ˈbænɪʃ/

banish

追放する
Meaning
to send someone away from a place as punishment; to get rid of
Example
The king banished the traitor from the kingdom.
王は裏切り者を王国から追放した。
A1 noun /ˈbɔɪˌfrɛnd/

boyfriend

Meaning
a man or boy that someone is having a romantic or close relationship with
Example
She introduced her boyfriend to her parents.
B2 noun, verb /blæst/

blast

爆発、強い衝撃
Meaning
a strong gust of wind, an explosion, or a loud sound; to destroy or shatter by explosion
Example
The explosion sent a powerful blast through the building.
爆発は建物を通して強力な爆風を送った。
B2 verb /breɪd/

braid

編み込み
Meaning
to weave together strands of hair or material
Example
She braided her hair before going to school.
彼女は学校に行く前に髪を編みました。
C2 adjective /ˈbʌmpʃəs/

bumptious

自信過剰な
Meaning
Arrogantly self-assertive or conceited.
Example
The bumptious student interrupted the teacher several times.
その自信過剰な学生は何度も先生を遮った。
A2 phrasal verb /bæk ʌp/

back up

支援する；バックアップする；後退する
Meaning
to support or help someone; to make a copy of data for safety; to move backward
Example
Please back up your files before updating the system.
システムを更新する前にファイルをバックアップしてください。
C1 noun/verb /ˈbɔɪ/ or /ˈbuːi/

buoy

ブイ, 浮かべる
Meaning
A floating marker on water; to keep something afloat or encourage someone.
Example
The news buoyed their spirits after the loss.
ニュースは喪失後、彼らの気持ちを高めました。
B2 adjective /bɪˈzɑːr/

bizarre

奇妙な
Meaning
very strange or unusual, especially so as to cause interest or amusement
Example
He told a bizarre story that no one could believe.
彼は誰も信じられないような奇妙な話をした。
B2 verb /ˈbraɪtən/

brighten

明るくする
Meaning
to make something lighter or more colorful; to improve mood or make happier
Example
A few kind words can brighten someone's day.
優しい言葉は誰かの一日を明るくすることができる。
C2 adjective /ˈbʌsti/

busty

胸が豊かな
Meaning
having a large or full bust; describing a woman with a prominent chest
Example
The actress was often described as busty in fashion magazines.
その女優はファッション雑誌でよく胸が豊かなと表現された。
C1 adjective /bræʃ/

brash

図々しい
Meaning
self-assertive in a rude, noisy, or overconfident way
Example
His brash comments offended many people at the meeting.
彼の図々しいコメントは会議で多くの人々を怒らせました。
C2 verb /ˈbækˌslaɪd/

backslide

後退
Meaning
To relapse into bad habits, undesirable practices, or moral decline.
Example
After months of progress, he began to backslide into old habits.
数ヶ月の進展の後、彼は古い習慣に戻り始めた。
C2 adjective /ˈbrætɪʃ/

brattish

わがまま
Meaning
acting like a spoiled child; behaving in an annoying, self-centered way
Example
The brattish boy threw a tantrum when he didn’t get his toy.
わがままな男の子は、おもちゃがもらえなかったときに駄々をこねました。
C1 adjective /ˈbed.rɪd.ən/

Bedridden

寝たきり
Meaning
confined to bed; unable to leave one's bed due to illness or infirmity
Example
The elderly man has been bedridden for several months.
高齢の男性は数ヶ月間寝たきりになっています。
C1 noun /ˈblʌd.ʃed/

Bloodshed

流血; 大虐殺
Meaning
the killing or wounding of people, typically in large numbers during a conflict
Example
The peace treaty was signed to prevent further bloodshed.
平和条約はさらなる流血を防ぐために署名されました。
B2 noun /ˈbɒmər/

Bomber

爆撃機
Meaning
military aircraft designed to drop bombs on targets
Example
The bomber squadron flew over the city at dawn.
爆撃機部隊は夜明けに都市の上を飛んだ。
B1 noun /bɪˈheɪ.vjər/

Behaviour

行動
Meaning
the way a person or animal acts or conducts themselves
Example
His behaviour at the meeting was very professional.
彼の会議での行動は非常にプロフェッショナルでした。
B2 noun /buˈkeɪ/

Bouquet

花束
Meaning
an attractively arranged bunch of flowers, especially one presented as a gift or carried at a ceremony
Example
The bride carried a beautiful bouquet of white roses down the aisle.
花嫁は白いバラの美しい花束を持って歩きました。
C2 noun /ˈbɜːrsər/

bursar

会計係
Meaning
An official in a school or college responsible for financial affairs.
Example
The bursar approved the budget for the new library.
会計係は新しい図書館の予算を承認しました。
A2 verb /ˈbɑroʊ/

borrow

借りる
Meaning
to take temporarily with intention to return; to take on loan
Example
Can I borrow your pen for a moment?
ちょっとあなたのペンを借りてもいいですか？
B2 noun /buːˈtiːk/

boutique

ブティックショップ
Meaning
a small shop that sells fashionable clothes or accessories
Example
She bought a beautiful dress from a boutique downtown.
彼女はダウンタウンのブティックショップで美しいドレスを買いました。
A1 noun /ˈbɒt.əl/

Bottle

ボトル
Meaning
a container with a narrow neck, typically made of glass or plastic, used for storing liquids
Example
She drank water from a plastic bottle.
彼女はプラスチックのボトルから水を飲んだ。
C2 adjective /bɪˈnaɪtɪd/

benighted

暗い、無知な
Meaning
In a state of intellectual or moral ignorance; overtaken by darkness.
Example
The explorers were lost in the benighted forest without any guide.
探検家たちはガイドなしで暗い森の中で迷子になった。
C2 noun /boʊl/

bole

木の幹
Meaning
the trunk of a tree
Example
The bole of the tree was thick and strong.
木の幹は太くて強かった。
A2 noun /ˈbʌtərflaɪ/

butterfly

蝶々
Meaning
an insect with large, often brightly colored wings that flies during the day
Example
A beautiful butterfly landed on the flower.
美しい蝶々が花の上に止まった。
C1 noun /brɔːl/

brawl

乱闘
Meaning
a noisy fight in a public place
Example
A brawl broke out outside the bar late at night.
夜遅くにバーの外で乱闘が起こった。
A2 noun /ˈbɑt.əm/

Bottom

底; 最下部
Meaning
the lowest point or part of something; the ground under a body of water
Example
The treasure chest was lying at the bottom of the ocean.
宝物の箱は海の底にあった。
C2 noun /ˈbɛlˌwɛðər/

bellwether

先駆者
Meaning
A person or thing that leads or indicates a trend.
Example
The company is seen as a bellwether of the technology industry.
その会社はテクノロジー業界の先駆者と見なされています。
C1 noun /ˈbɛərnəs/

bareness

裸の状態
Meaning
the state of being bare or uncovered; lack of decoration, warmth, or concealment
Example
The bareness of the room made it feel cold and unwelcoming.
部屋の裸の状態が冷たく居心地の悪い感じを与えた。
C1 noun /ˈbɑn.dɪdʒ/

Bondage

奴隷状態; 拘束
Meaning
the state of being a slave; the state of being under the control of a force or influence
Example
The people fought to escape from the bondage of oppression.
人々は圧政の束縛から逃れるために戦った。