boring
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A1 adjective /ˈbɔːrɪŋ/

boring

退屈
Meaning
not interesting or exciting; dull.
Example
The lecture was so boring that several students fell asleep.
講義は退屈すぎて、何人かの学生が眠ってしまった。
C2 noun /breɪ/

brae

斜面
Meaning
A hillside or slope, especially in Scotland.
Example
They climbed up the grassy brae to see the sunset.
彼らは草に覆われた斜面を登って夕日を見ました。
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。
C1 verb /bɔːk/

balk

拒否する
Meaning
to hesitate or refuse to proceed or comply
Example
She balked at signing the contract without reading it fully.
彼女は契約書を完全に読まずに署名することをためらった。
C2 noun /boʊl/

boll

丸い種子のカプセル（綿花や亜麻のような）
Meaning
The rounded seed capsule of plants such as cotton or flax.
Example
The farmer examined the cotton boll to check its quality.
農夫は綿のボールを調べて、その品質を確認しました。
C2 verb /bɪˈfuːl/

befool

だます
Meaning
to deceive or trick someone into believing something false; to make someone appear foolish
Example
The scammer tried to befool innocent people with fake promises.
詐欺師は偽の約束で無実の人々をだまそうとした。
B2 interjection /ˈbrɑː.voʊ/

bravo

ブラボー
Meaning
used to express approval, admiration, or praise
Example
The audience shouted 'Bravo!' after the stunning performance.
観客は素晴らしいパフォーマンスの後で「ブラボー！」と叫びました。
A2 verb /bit/

beat

叩く
Meaning
to strike repeatedly; to defeat; to pulsate rhythmically
Example
Our team will beat theirs in the final match.
私たちのチームは決勝戦で彼らに勝ちます。
C2 noun /bəˈfuːnəri/

buffoonery

ばかげた行動
Meaning
Foolish or ridiculous behavior intended to amuse.
Example
His constant buffoonery irritated the serious audience.
彼の絶え間ないばかげた行動は真剣な観客をイライラさせた。
B2 adjective /ˈbɪtər/

Bitter

苦い; 強い味; 怒りや失望を表す
Meaning
having a sharp, pungent taste; feeling or showing anger and disappointment
Example
The medicine had a bitter taste.
薬は苦い味がしました。
B1 noun /biːst/

Beast

獣
Meaning
a large or dangerous animal; a cruel or unpleasant person
Example
The lion is a fierce beast of the jungle.
ライオンはジャングルの猛獣です。
B1 noun /bʌlb/

bulb

Meaning
a rounded glass part of an electric lamp that produces light when lit; also an underground storage organ in some plants
Example
The light bulb burned out, so she replaced it with a new one.
C2 noun /baɪˈmɛstər/

bimester

二ヶ月の期間
Meaning
A period of two months.
Example
The academic program is divided into six bimesters.
学術プログラムは6つのバイメスターに分かれています。
B2 noun /brest/

Breast

胸
Meaning
the front surface of a person's or animal's body between the neck and the stomach
Example
The baby fell asleep on her mother's breast.
赤ちゃんは母親の胸で寝ました。
C2 noun /ˈbiːtənd raɪs/

Beatened rice

ビート米
Meaning
flattened rice; rice that has been parboiled, dried, and beaten into flat flakes
Example
Beaten rice is commonly eaten with milk and sugar for breakfast.
ビート米は通常、朝食で牛乳と砂糖と一緒に食べられます。
A1 noun /ˈbrʌðər/

brother

兄弟
Meaning
a male sibling
Example
My brother is two years older than me.
私の兄は私より2歳年上です。
C2 noun /bleɪn/

Blain

水疱
Meaning
an inflammatory swelling or sore on the skin; a blister or pustule
Example
The doctor examined the blain on his arm.
医者は彼の腕の水疱を検査しました。
C1 noun /bəˈtɒn/

baton

Meaning
A thin stick carried by a conductor to direct an orchestra, or used as a symbol of authority.
Example
The conductor raised his baton to begin the symphony.
B2 noun /ˈbrɔːdˌkæstər/

broadcaster

放送者
Meaning
a person or organization that transmits a broadcast program.
Example
The broadcaster aired the match live to millions of viewers.
ブロードキャスターは試合を数百万の視聴者にライブ放送しました。
C1 verb /bʌdʒ/

budge

Meaning
To move slightly; to change one’s opinion or position.
Example
Despite the pressure, he refused to budge from his decision.
C1 noun/adjective/verb /bʌf/

buff

映画ファン / 磨く
Meaning
A fan or enthusiast; also to polish or shine something.
Example
He is a movie buff who watches films every weekend.
彼は毎週末映画を観る映画ファンです。
B2 verb /blɜːr/

blur

ぼやける
Meaning
to make something unclear or difficult to see
Example
Tears blurred her vision.
涙が彼女の視界をぼやけさせた。
B1 noun /bʌɡ/

Bug

虫
Meaning
a small insect; a defect in a computer program
Example
I found a bug crawling on my bed sheets.
ベッドシーツで虫が這っているのを見つけました。
B1 noun /ˈbæŋkər/

banker

銀行家
Meaning
a person who works in or manages a bank
Example
The banker approved the loan after reviewing the documents.
銀行家は書類を確認した後、ローンを承認しました。
C1 phrase ˌbaɪ.oʊ.daɪˈvɜː.sɪ.ti ˌprez.əˈveɪ.ʃən

biodiversity preservation

生物多様性の保護
Meaning
The protection and conservation of the variety of life in all its forms, including different species, genetic diversity, and ecosystems.
Example
Biodiversity preservation is critical for ecological balance.
生物多様性の保護は生態系のバランスにとって重要です。
C2 verb /bɪˈtəʊkən/

betoken

示唆する
Meaning
to be a sign or indication of something
Example
Dark clouds betoken an approaching storm.
暗い雲は迫り来る嵐を示唆している。
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 adjective /ˌben.ɪˈfɪʃ.əl/

beneficial

有益な
Meaning
Resulting in good; favorable or advantageous.
Example
Eye rubbing can be beneficial in moderation.
目をこすることは適度であれば有益です。
C2 noun /ˈbɜːrɡər/

burgher

市民（裕福な中産階級）
Meaning
A citizen of a town, typically a member of the wealthy middle class.
Example
The burgher was respected as a prosperous merchant in the city.
その市民は、町で繁栄している商人として尊敬されていました。
C2 adjective /ˈbræsi/

brassy

派手な
Meaning
loud and showy in a way that lacks good taste; resembling brass in color or sound
Example
She wore a brassy necklace that caught everyone’s attention.
彼女は目立つネックレスをしていて、みんなの注目を集めていた。
B1 phrase bɛst ˈɛf.ərt

best effort

最善の努力
Meaning
The maximum amount of effort or energy that someone can give.
Example
He gave his best effort to complete the task on time.
彼は時間通りに仕事を終えるために最善の努力をした。
B2 noun/verb /beɪt/

bait

Meaning
Food or lure used to attract fish or animals; to deliberately provoke or annoy.
Example
He used worms as bait to catch fish.
A1 adjective /bluː/

Blue

青
Meaning
having the color of the clear sky or the sea
Example
The blue ocean stretched endlessly to the horizon.
青い海は地平線まで果てしなく広がっていた。
C2 verb /bɪˈtaɪd/

betide

起こる
Meaning
to happen or occur, usually of something that befalls someone
Example
Woe betide anyone who breaks the rules.
ルールを破る者は災難を被るだろう。
B1 noun /ˈbæŋkɪŋ/

banking

銀行業務または銀行サービス
Meaning
the business or services provided by a bank
Example
Online banking has made financial transactions easier.
オンラインバンキングは金融取引を簡単にしました。
C1 noun /bɪz/

Biz

ビジネス
Meaning
business (informal); commercial enterprise or activity
Example
He's been in the restaurant biz for twenty years.
彼は20年間、レストランのビジネスをしてきました。
C1 verb /bɪˈsɛt/

beset

Meaning
to trouble, harass, or attack on all sides
Example
The village was beset by constant floods.
C1 verb /ˈbæfəl/

baffle

困惑させる
Meaning
to confuse; to be too difficult to understand
Example
The math problem baffles me completely.
数学の問題は私を完全に困惑させます。
A1 noun /bɒks/

Box

箱
Meaning
a container with flat sides and a lid, used for storing or carrying things
Example
She put her toys in the wooden box.
彼女はおもちゃを木の箱に入れました。
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。
C2 adjective /ˈbʌmblɪŋ/

bumbling

不器用
Meaning
Acting in a clumsy, awkward, or confused way.
Example
The bumbling waiter spilled the drinks on the table.
その不器用なウェイターはテーブルに飲み物をこぼした。
B2 adjective /blænd/

bland

無味
Meaning
lacking strong features, flavor, or character; dull or uninteresting
Example
The soup was too bland for my taste.
このスープは私の好みにとっては無味でした。
C1 noun /bɪˈriːvmənt/

bereavement

Meaning
The state of having lost a loved one through death.
Example
She received many letters of sympathy during her time of bereavement.
B1 noun ˈbæriə(r)

barrier

障壁
Meaning
A fence or other obstacle that prevents movement or access.
Example
The barrier prevented entry.
その障壁は入場を防ぎました。
B2 noun ˌbaɪ.oʊ.dɪˈvɝː.sə.t̬i

biodiversity

生物多様性
Meaning
The variety of life in the world or in a particular habitat or ecosystem.
Example
Rainforests are home to immense biodiversity.
熱帯雨林は膨大な生物多様性を持っています。
C1 noun /bəˈbuːn/

Baboon

バブーン
Meaning
a large African and Arabian primate with a dog-like snout and colorful buttocks
Example
The baboon troop gathered around the watering hole in the savanna.
バブーンの群れはサバンナの水場の周りに集まりました。
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 /ˌbæstərdaɪˈzeɪʃən/

bastardization

歪曲 / 堕落
Meaning
the act of corrupting, degrading, or misrepresenting something
Example
Critics called the remake a bastardization of the original film.
批評家たちはリメイクをオリジナル映画の歪曲だと言った。
C1 noun /bɪˈtreɪər/

Betrayer

裏切り者; 不忠者
Meaning
a person who betrays someone or something; one who is disloyal
Example
The betrayer was exposed and faced severe consequences.
裏切り者は暴露され、厳しい結果に直面しました。
C2 adjective /ˌbiːəˈtɪfɪk/

beatific

至福の
Meaning
blissfully happy or showing great joy
Example
She had a beatific smile after hearing the good news.
彼女は良い知らせを聞いた後、至福の笑顔を浮かべていた。
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。
C2 noun /ˈbæs.tərd tiːk/

Bastard teak

バスタードティーク
Meaning
A flowering tree with bright orange-red flowers, also known as flame of the forest
Example
The bastard teak tree blooms with vibrant orange flowers in spring.
バスタードティークの木は春に鮮やかなオレンジ色の花を咲かせます。
A2 noun ˈbæl.əns

balance

バランス
Meaning
A condition in which different elements are equal or in the correct proportions.
Example
Balance among powers prevents conflicts.
権力のバランスは対立を防ぎます。
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。
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。
B2 noun ˈbɪz.nɪs ˈfaɪ.næns

business finance

ビジネスファイナンス
Meaning
The area of finance that deals with sources of funding and the capital structure of corporations.
Example
Effective business finance enhances profitability.
効果的なビジネスファイナンスは利益性を高めます。
C2 verb /bɪˈfɒɡ/

befog

ぼやけさせる
Meaning
to confuse or make unclear; to cover with fog or mist
Example
His mind was befogged by exhaustion.
彼の心は疲れによってぼやけていた。
B1 noun, verb /bʌz/

buzz

ブーンという音
Meaning
to make a low continuous humming sound; a feeling of excitement or interest
Example
I could hear the phone buzz during the meeting.
会議中に電話がブーンと鳴るのが聞こえた。
C1 verb; noun /beltʃ/

belch

げっぷをする
Meaning
to expel air noisily from the stomach through the mouth; to emit or pour out suddenly and forcefully
Example
After drinking the soda, he belched loudly.
ソーダを飲んだ後、彼は大きなげっぷをした。
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。
A2 noun /biːf/

Beef

牛肉
Meaning
meat from a cow or bull
Example
The restaurant serves the best beef steak in town.
レストランは町で最高の牛肉ステーキを提供しています。
C1 noun /bʊk ˈbaɪn.dər/

Book binder

本の製本工
Meaning
a person whose job is to fasten the pages of books together and put covers on them
Example
The old book binder carefully restored the antique manuscript.
古い本の製本工は古文書を慎重に修復しました。
C2 verb /bɪˈstruː/

bestrew

撒く
Meaning
To scatter or cover something with objects or substances.
Example
The ground was bestrewn with autumn leaves.
地面は秋の葉で覆われていた。
C1 noun/adjective /ˈbaɪ.ɡɒn/

bygone

過ぎ去った
Meaning
Something belonging to an earlier time; past and no longer existing.
Example
He often talks about the traditions of bygone days.
彼はよく過去の日々の伝統について話します。
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。
A2 noun /bel/

Bell

鐘
Meaning
a hollow metal device that makes a ringing sound when struck
Example
The church bell rang at noon.
教会の鐘は正午に鳴りました。
C1 adjective /ˈbʊkɪʃ/

Bookish

本好きな; 学問的な
Meaning
studious; scholarly; devoted to reading and studying
Example
She was known for her bookish nature and love of literature.
彼女は本好きな性格と文学への愛で知られていました。
C1 noun /ˈbæləd/

ballad

叙事歌
Meaning
a narrative song or poem, often sentimental or romantic
Example
The singer performed a moving ballad about lost love.
歌手は失われた愛について感動的なバラッドを披露しました。
B1 noun /bloʊ/

Blow

打撃; 手、武器、または硬い物体での強力な一撃
Meaning
a powerful stroke with a hand, weapon, or hard object
Example
The boxer delivered a devastating blow to his opponent.
ボクサーは対戦相手に壊滅的な一撃を与えました。
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。
C1 noun /ˈbraɪ.dəl/

Bridle

手綱; 騎馬用具
Meaning
the headgear used to control a horse, consisting of buckled straps and a bit
Example
The rider adjusted the horse's bridle before mounting for the race.
騎手はレースの前に馬の手綱を調整した。
A1 verb /bɪˈkʌm/

become

なる
Meaning
to grow to be; to come to be
Example
She became a doctor after years of study.
彼女は何年もの勉強を経て医師になりました。
B2 adjective /ˈbaɪəst/

Biased

偏見
Meaning
showing prejudice for or against someone or something unfairly
Example
The judge was accused of being biased against the defendant.
裁判官は被告に対して偏見があると告発されました。
B1 adjective /blæŋk/

blank

空白
Meaning
showing no expression or containing nothing written, printed, or recorded.
Example
Her face went blank when she heard the bad news.
悪いニュースを聞いたとき、彼女の顔は空白になった。
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。
A1 noun /bʌs/

Bus

バス
Meaning
a large motor vehicle carrying passengers by road
Example
I take the bus to work every morning.
私は毎朝バスで仕事に行きます。
C2 noun /ˈbʌɡəˌbuː/

bugaboo

恐怖 / 不安
Meaning
An object of fear or worry; an imagined cause of anxiety.
Example
The threat of inflation became a political bugaboo.
インフレーションの脅威は政治的な恐怖に変わった。
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。
C2 verb /ˈbæstərdaɪz/

bastardize

歪める
Meaning
to corrupt or debase something by altering it from its original form; to change in a way that reduces quality or purity
Example
Critics argue that the remake bastardized the original novel.
批評家たちはそのリメイクが原作を歪めたと言っている。
C2 noun /bænˈdænə/

bandanna

大きなカラフルなバンダナ
Meaning
A large, often brightly colored handkerchief, typically worn on the head or around the neck.
Example
He tied a red bandanna around his neck.
彼は首に赤いバンダナを結んだ。
A2 adjective /breɪv/

brave

勇敢な
Meaning
showing courage in the face of danger or difficulty
Example
The brave firefighter rushed into the burning building.
勇敢な消防士が燃える建物に飛び込んだ。
C1 noun /ˈbrɛvɪti/

brevity

Meaning
Concise and exact use of words in writing or speech.
Example
The brevity of the speech kept the audience engaged.
C1 noun /blɪs/

Bliss

完全な幸せ; 大きな喜び
Meaning
perfect happiness; great joy
Example
She felt pure bliss while watching the beautiful sunset.
彼女は美しい夕日を見ながら純粋な幸せを感じました。
C2 noun /ˈbʌt.ər fɪʃ/

Butter-fish

バターフィッシュ
Meaning
a small, smooth-skinned marine fish
Example
The butter-fish is popular in Bengali cuisine.
バターフィッシュはベンガル料理で人気があります。
C2 adjective /ˈbɪloʊɪŋ/

billowing

波打つ
Meaning
Describing something that swells or surges outward in waves or large masses.
Example
She walked through the billowing curtains.
彼女は波打つカーテンを通り抜けた。
A2 noun/verb /bəˈluːn/

balloon

風船
Meaning
A small bag made of thin rubber or similar material that can be inflated with air or gas; as a verb, to expand rapidly.
Example
The children played with a red balloon at the party.
子供たちはパーティーで赤い風船で遊んでいました。
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 adjective /ˈbreɪzən/

brazen

Meaning
Bold and without shame; shameless.
Example
She made a brazen attempt to lie in front of everyone.
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。
C2 verb /baɪd/

bide

待つ
Meaning
to wait patiently for the right time or opportunity
Example
He decided to bide his time before making a move.
彼は動きを起こす前に時間を待つことに決めました。
B2 noun /beɪ/

Bay

湾
Meaning
a broad inlet of the sea where the land curves inward
Example
The boats are anchored in the bay.
ボートは湾に停泊しています。
C2 noun /ˈbæn.jən/

Banian

ランニングシャツ
Meaning
a sleeveless undergarment worn next to the skin; vest
Example
He put on a cotton banian under his shirt.
彼はシャツの下に綿のバニアンを着ました。
A2 noun /bæˈleɪ/

ballet

バレエ
Meaning
a highly stylized and artistic form of dance
Example
She has trained for years in classical ballet.
彼女は何年もクラシックバレエを練習してきました。
B2 adjective /bɪˈliːvəbl̩/

believable

信じられる
Meaning
Able to be trusted or accepted as true or reasonable.
Example
Her story was so detailed that it sounded believable.
彼女の話は非常に詳細で、信じられるように聞こえました。
C2 verb /blæsˈfiːm/

blaspheme

冒涜する
Meaning
to speak irreverently about God or sacred things
Example
He was accused of blaspheming during the heated argument.
彼は激しい議論中に冒涜したとして告発されました。
A2 noun /brɪdʒ/

Bridge

橋
Meaning
a structure carrying a road, path, railway, etc. across a river, road, or other obstacle
Example
The old stone bridge has connected the two towns for over a century.
古い石橋は1世紀以上にわたって二つの町を結びつけてきました。
B1 noun /ˈboʊ.nəs/

Bonus

ボーナス
Meaning
an amount of money added to wages on a seasonal basis, especially as a reward for good performance
Example
She received a year-end bonus for her excellent work performance.
彼女は優れた仕事のパフォーマンスに対する年末ボーナスを受け取った。
B1 adverb /ˈbraɪtli/

brightly

明るく
Meaning
in a way that gives off a lot of light; in a vivid, cheerful, or intelligent manner
Example
The stars shone brightly in the clear night sky.
澄んだ夜空に星が明るく輝いていた。
C1 noun /braɪn/

brine

塩水
Meaning
Water saturated with salt, often used for preserving food.
Example
The olives were stored in brine to keep them fresh.
オリーブは新鮮さを保つために塩水に保存されました。
B2 noun /ˈbɒdiɡɑːrd/

bodyguard

ボディガード
Meaning
a person employed to protect someone from harm
Example
The celebrity arrived with her bodyguard.
その有名人はボディガードと一緒に到着した。
A2 noun /bɪɡ boʊl/

Big bowl

大きなボウル
Meaning
a large, round, shallow container used for serving food, mixing ingredients, or washing
Example
She mixed the ingredients in a big bowl.
彼女は大きなボウルで材料を混ぜました。
C1 noun /blɒˈkeɪd/

Blockade

封鎖
Meaning
an act or means of sealing off a place to prevent goods or people from entering or leaving
Example
The naval blockade prevented supplies from reaching the port.
海上封鎖により物資が港に届くのを防ぎました。
C2 noun /ˈbɒdɪs/

bodice

コルセット
Meaning
the part of a woman's dress that covers the body from the neck to the waist
Example
She wore a dress with an embroidered bodice.
彼女は刺繍が施されたコルセット付きのドレスを着ていた。
C1 noun /ˈbreɪkər/

breaker

ブレーカー（何かを壊す人や物、海岸近くで泡に壊れる大きな波、電気回路を中断する装置）
Meaning
A person or thing that breaks something; a large sea wave that breaks into foam near the shore; a device that interrupts an electric circuit.
Example
The breaker tripped during the storm, cutting off electricity.
嵐の間にブレーカーがトリップし、電気が切断されました。
C1 noun /bɜːrθ/

Berth

寝台; 船、列車、または他の乗り物で寝る場所
Meaning
a sleeping place in a ship, train, or other vehicle; a place where a ship can dock
Example
I booked an upper berth on the overnight train.
私は夜行列車で上段の寝台を予約しました。
C1 verb /blɜːrt/

blurt

うっかり言う
Meaning
to say something suddenly without thinking
Example
He blurts out the secret accidentally.
彼はうっかり秘密を言ってしまう。
B2 noun /ˈbæŋkrʌpt/

Bankrupt

破産
Meaning
a person unable to pay debts; having no money; completely lacking in something
Example
The company went bankrupt after years of poor financial management.
その会社は、長年の不良な財務管理の後、破産しました。
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。
C2 verb /bɪˈhuːv/

behoove

誰かが何かをすることが必要または適切である
Meaning
to be necessary, proper, or appropriate for someone to do
Example
It would behoove you to study before the exam.
試験の前に勉強することが必要です。
A1 preposition/adverb/conjunction /bɪˈfɔːr/

before

前に
Meaning
At an earlier time; in front of in order or place.
Example
She arrived before the meeting started.
彼女は会議が始まる前に到着した。
A2 verb /bɛɡ/

beg

お願いする
Meaning
to ask for something earnestly; to request humbly
Example
The child begged for a new toy.
その子供は新しいおもちゃをお願いしました。
A2 noun; gerund /ˈbɒksɪŋ/

boxing

ボクシング
Meaning
the sport of fighting with fists using padded gloves; the act of putting something into a box
Example
He has been training hard for a professional boxing match.
彼はプロのボクシングの試合に向けて厳しく練習している。
C2 noun /ˈbrɪk ə ˌbræk/

bric-a-brac

小さな装飾品
Meaning
Small decorative objects or ornaments, often of little value.
Example
The shelves were filled with old bric-a-brac from her travels.
棚は彼女の旅行から持ち帰った古い小さな装飾品でいっぱいだった。
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。
C1 noun /beɪn/

bane

災い
Meaning
A cause of great distress, harm, or annoyance.
Example
Traffic jams are the bane of city life.
交通渋滞は都市生活の災いです。
C2 noun /ˈbærəˌɡræf/

barograph

大気圧の変化を記録する機器
Meaning
an instrument that records changes in atmospheric pressure
Example
The scientist checked the barograph for pressure variations.
科学者は圧力の変動を調べるためにバログラフを確認した。
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。
C1 noun /ˈbæs.ti.ən/

bastion

要塞, 防衛拠点
Meaning
a stronghold or fortification; a place or institution strongly defending particular principles
Example
The castle stood as a bastion against enemy attacks.
その城は敵の攻撃に対する要塞として立っていました。
A2 noun /ˈbɪznəsmæn/

businessman

ビジネスマン
Meaning
a person engaged in commercial or industrial business activities
Example
The businessman invested heavily in new technology.
ビジネスマンは新しい技術に多額の投資をしました。
C2 noun /ˌbeɪt ˈnwɑːr/

bete noire

特に嫌われるもの
Meaning
A person or thing that one particularly dislikes or fears.
Example
Grammar has always been his bete noire.
文法は常に彼のベットノワールでした。
B1 noun /ˈbɔr.dər/

Border

国境
Meaning
a line separating two political or geographical areas, especially countries
Example
They crossed the border between France and Spain by train.
彼らは電車でフランスとスペインの間の国境を越えました。