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A1 adverb /bɪˈhaɪnd/

Behind

後ろ
Meaning
at the back of; following; lagging
Example
The car behind us was honking.
私たちの後ろの車はクラクションを鳴らしていました。
C1 adjective bəˈnev.əl.ənt

benevolent

慈悲深い, 寛大な, 親切な
Meaning
Kind, generous, showing goodwill and kindness.
Example
His benevolent nature made him beloved.
彼の寛大な性格は彼をとても愛される人にしました。
C2 noun /ˌbeɪˈliː/

bailee

受寄者
Meaning
a person or party who temporarily receives possession of goods or property from another under a legal agreement
Example
The bailee must take reasonable care of the goods while they are in his possession.
受寄者は財産を適切に管理する義務がある。
B2 noun /broʊtʃ/

brooch

Meaning
a decorative jewelry pin that is attached to clothing
Example
She wore a beautiful silver brooch on her jacket.
C2 adjective /ˈbɑː.bər.əs/

Barbarous

野蛮な; 残忍な; 未開の
Meaning
extremely cruel; uncivilized; savage
Example
The barbarous treatment of prisoners was condemned by human rights organizations.
囚人に対する野蛮な扱いは人権団体によって非難された。
C2 noun /blɑːtʃ/

blotch

しみ
Meaning
a large, irregular spot or stain, often on skin or fabric
Example
His shirt had a red blotch from the spilled juice.
彼のシャツにはこぼれたジュースで赤いしみがついていた。
C2 adjective /blɑːˈzeɪ/

blase

無関心, 無感動
Meaning
unimpressed or indifferent to something because it has been experienced so often before
Example
After years of luxury travel, she felt blase about another trip to Paris.
何年もの贅沢な旅行の後、彼女はパリへの別の旅行に対して無関心を感じた。
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 adjective /ˈblaɪðsəm/

blithesome

陽気
Meaning
cheerful, carefree, and full of joy
Example
She entered the room with a blithesome smile that lifted everyone's spirits.
彼女は陽気な笑顔で部屋に入り、皆の気分を盛り上げました。
C2 noun /brɪˈtæniə/

britannia

ブリタニア
Meaning
the personification of Britain, often shown as a woman with a helmet and shield
Example
Britannia has been a symbol of Britain since Roman times.
ブリタニアはローマ時代からイギリスの象徴です。
A1 determiner/pronoun /boʊθ/

both

両方
Meaning
referring to two people or things together
Example
Both of the children were excited about the trip.
旅行について両方の子供たちは興奮していました。
B2 noun /biːt/

Beet

ビート
Meaning
a plant with a round dark red root that is eaten as a vegetable
Example
Roasted beet with goat cheese makes a delicious salad.
ゴートチーズとローストビートが美味しいサラダを作ります。
B2 verb /bɑːrk/

bark

吠える
Meaning
to make a sharp sound like a dog; to speak angrily
Example
The dog barks at strangers.
犬は見知らぬ人に吠える。
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。
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。
C2 adjective, noun /bɪˈtroʊðd/

betrothed

婚約者
Meaning
Engaged to be married; a person who is engaged.
Example
She introduced him as her betrothed.
彼女は彼を婚約者として紹介しました。
A2 verb /baɪt/

bite

かむ
Meaning
to cut with teeth; to have a sharp effect
Example
The dog might bite if it feels threatened.
その犬は、もし脅威を感じると噛むかもしれません。
B2 adjective /ˈbɒdɪli/

bodily

身体的な
Meaning
relating to or concerning the body
Example
He suffered bodily harm in the accident.
彼は事故で身体的な損傷を受けた。
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。
B2 noun /bætʃ/

batch

一度に生産または処理されたアイテムの量
Meaning
a quantity of items produced or processed at one time
Example
She baked a fresh batch of cookies this morning.
彼女は今朝、新しいバッチのクッキーを焼いた。
C1 adjective, noun /ˈbʊrʒ.wɑː/

bourgeois

ブルジョア
Meaning
Relating to the middle class, often with materialistic values or conventional attitudes.
Example
The novel criticizes the bourgeois lifestyle of the city dwellers.
その小説は都市住民のブルジョア生活様式を批判している。
C2 adjective /ˈbʊərɪʃ/

boorish

粗野
Meaning
Rude, insensitive, and lacking manners or refinement.
Example
His boorish behavior ruined the dinner party.
彼の粗野な行動はディナーパーティーを台無しにした。
B2 noun bjʊəˈrɒk.rə.si

bureaucracy

官僚主義
Meaning
A system of government in which most of the important decisions are made by state officials rather than by elected representatives.
Example
Excessive bureaucracy can slow down decision-making.
過度な官僚主義は意思決定を遅らせることがあります。
B1 noun /ˈbluː.ber.i/

Blueberry

ブルーベリー
Meaning
a small round blue fruit that grows on bushes
Example
She picked fresh blueberries for the pie.
彼女はパイのために新鮮なブルーベリーを摘んだ。
C1 noun /brɛdθ/

breadth

幅
Meaning
The distance or measurement from side to side; width; a wide range.
Example
The breadth of his knowledge impressed everyone.
彼の知識の幅は皆に感銘を与えました。
B2 noun ˈbluː.prɪnt

blueprint

設計図
Meaning
A detailed plan or framework for a work or project, a pre-planned structure.
Example
The architect presented a blueprint for the new building.
建築家は新しい建物のために設計図を提示しました。
B2 noun ˈbaɪ.əs

bias

偏見, バイアス
Meaning
Prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
Example
The judge must remain free from bias.
裁判官はバイアスなしでいなければならない。
C2 verb /ˈblækˌbɔːl/

blackball

排除する
Meaning
to exclude someone socially or vote against their membership in a group or club
Example
He was blackballed from the club after the controversy.
彼は論争の後、クラブから排除された。
C2 noun /ˈbrɪɡ.ənd/

brigand

山賊
Meaning
A member of a gang that ambushes and robs people in forests or mountains; a bandit.
Example
The travelers were attacked by brigands in the mountains.
旅行者は山中で山賊に襲われました。
B1 noun ˈbaʊndəri

boundary

境界
Meaning
A line that marks the limits of an area; a dividing line.
Example
The river marks the boundary.
川が境界を示します。
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。
A1 verb /baɪ/

buy

買う
Meaning
to get something by paying money for it; to purchase
Example
I want to buy a new car this year.
今年は新しい車を買いたいです。
C1 noun /ˈbɜːrθraɪt/

birthright

生まれつきの権利
Meaning
A privilege or possession that a person has from birth.
Example
Freedom is considered a birthright of every individual.
自由はすべての個人の生まれつきの権利と見なされます。
A2 noun /bænd/

band

バンド
Meaning
a group of musicians who play music together
Example
The band performed live at the concert.
バンドはコンサートでライブパフォーマンスをしました。
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。
B2 adjective /ˈbleɪzɪŋ/

Blazing

燃えるような; 激しい
Meaning
burning fiercely; extremely hot; very bright
Example
The blazing sun made the day extremely hot.
燃えるような太陽はその日を非常に暑くした。
C2 noun /ˌbræɡəˈdoʊʃioʊ/

braggadocio

自慢話
Meaning
boastful or arrogant behavior; empty boasting
Example
His endless braggadocio annoyed everyone at the party.
彼の終わりのない自慢話はパーティーの皆をイライラさせた。
C2 verb /bɪˈteɪk/

betake

向かう；取りかかる
Meaning
to go or resort to a place or course of action, especially as a response; to apply oneself
Example
After dinner, she betook herself to her room to read.
夕食後、彼女は読書のため自分の部屋へ向かった。
C1 adjective /bɪˈleɪtɪd/

belated

遅れた
Meaning
coming or happening later than expected or usual
Example
She sent me a belated birthday card.
彼女は遅れた誕生日カードを送ってくれた。
C2 noun /briːtʃ/

breech

Meaning
The back part of a gun barrel; a position of a baby in the womb where the buttocks or feet come out first at birth.
Example
The rifle was loaded through the breech.
B2 noun ˈbænd.wɪdθ

bandwidth

帯域幅
Meaning
A range of frequencies within a given band, in particular that used for transmitting a signal; the maximum amount of data that can be transmitted in a fixed amount of time.
Example
Increasing bandwidth enhances internet speed.
帯域幅を増やすとインターネットの速度が向上します。
B2 verb/noun /buː/

boo

Meaning
To show disapproval by shouting 'boo'; or a sound made to surprise or scare.
Example
The audience began to boo the bad performance.
C2 noun /ˈbɑːr.kəˌroʊl/

barcarole

バルカロール
Meaning
a traditional Venetian boat song, often in 6/8 time
Example
The orchestra played a beautiful barcarole that reminded me of Venice.
オーケストラは美しいバルカロールを演奏し、私にヴェネツィアを思い出させました。
B2 adjective /beər/

Bare

裸; 未覆われた; 空; 最小限
Meaning
naked; uncovered; empty; minimal
Example
The bare walls of the room needed some decoration.
部屋の裸の壁は何か飾りが必要だった。
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。
B1 adjective /blɒnd/

blond

Meaning
having light-colored hair, typically pale yellow or golden.
Example
She has long blond hair that shines in the sunlight.
B1 adjective /ˈbrɪliənt/

brilliant

素晴らしい
Meaning
Exceptionally clever, talented, or impressive; very bright or radiant.
Example
She gave a brilliant performance on stage.
彼女はステージで素晴らしいパフォーマンスをしました。
C2 noun /ˈbrɪn.dʒəl/

Brinjal

ナス
Meaning
a large purple vegetable that is white inside; also called eggplant
Example
My mother cooked brinjal curry for lunch.
母は昼食にナスのカレーを作りました。
C1 noun, verb /buːz/

booze

酒
Meaning
alcoholic drink, especially strong liquor; to drink alcohol, often excessively
Example
They bought some booze for the party.
彼らはパーティーのために酒を買った。
B2 noun /ˈbrɔːd.bænd/

broadband

ブロードバンド
Meaning
a high-capacity transmission technique using a wide range of frequencies.
Example
Broadband internet has become a necessity in modern homes.
ブロードバンドインターネットは現代の家庭で必需品となっています。
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。
A2 noun /blʌd/

Blood

血液
Meaning
the red liquid that circulates in the arteries and veins of humans and animals, carrying oxygen to and carbon dioxide from the tissues of the body
Example
The doctor took a blood sample for testing.
医師は検査のために血液サンプルを採取しました。
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。
C1 verb /bæsk/

bask

日向ぼっこ
Meaning
to lie in warmth and light; to enjoy something pleasurable
Example
The cat basks in the sunny window.
猫は日差しの差す窓辺で日向ぼっこをしている。
C1 noun /ˈbɛd.rɒk/

bedrock

基盤
Meaning
the solid rock layer beneath the soil; the fundamental basis of something
Example
Trust is the bedrock of a healthy relationship.
信頼は健康な関係の基盤です。
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。
C1 noun /bəˈnɛv.ə.ləns/

benevolence

慈善または優しさ
Meaning
The quality of being well meaning and kindly; the disposition to do good.
Example
His benevolence towards the poor earned him respect.
貧しい人々に対する彼の優しさは、彼に尊敬をもたらしました。
B1 verb /ˈberi/

bury

埋める
Meaning
to put in the ground; to hide; to cover completely
Example
The dog buries its bone in the yard.
犬は庭に骨を埋める。
A1 verb /bʌt/

but

頭突きする
Meaning
to hit or push with the head or horns; to strike forcefully
Example
The goat butted against the fence.
ヤギはフェンスにぶつかった。
C2 noun /ˌbʌkəˈnɪər/

buccaneer

海賊
Meaning
a pirate, especially one active in the Caribbean during the 17th and 18th centuries
Example
The buccaneer sailed across the Caribbean in search of treasure.
その海賊はカリブ海を航海し、宝物を探していた。
B2 noun /ˈbɒt.əl.nek/

bottleneck

ボトルネック
Meaning
Narrow path or obstruction, a place or situation where flow becomes slow.
Example
The narrow bridge is a major bottleneck during rush hour.
狭い橋はラッシュアワーの間、主要なボトルネックです。
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。
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。
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 verb /bɪˈsmɪər/

besmear

汚す
Meaning
to smear or cover with a sticky or dirty substance; to soil
Example
His clothes were besmeared with mud.
彼の服は泥で汚れていた。
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。
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。
C1 verb /ˈbɪkər/

bicker

些細なことで言い争う
Meaning
To argue or quarrel about trivial matters.
Example
The children began to bicker over the last piece of cake.
子供たちは最後のケーキの一切れをめぐって言い争いを始めた。
C2 adjective /bruːsk/ or /brʌsk/

brusque

ぶっきらぼう
Meaning
abrupt or blunt in manner or speech, often seen as rude
Example
His brusque reply ended the conversation.
彼のぶっきらぼうな返事で会話が終わった。
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.
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, verb /bəˈfeɪ/ (noun), /ˈbʌfɪt/ (verb)

buffet

Meaning
A meal where guests serve themselves from a variety of dishes arranged on a table; also means to strike repeatedly (as a verb).
Example
We enjoyed a large buffet at the wedding reception.
B2 noun /bʌlk/

Bulk

塊; 大部分;
Meaning
the mass or size of something large; the greater part or majority of something
Example
The bulk of the work was completed before the deadline.
仕事の大部分は締め切り前に終わりました。
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。
C1 verb /brɔɪl/

broil

グリルする
Meaning
To cook food by direct heat, usually under a grill or over a fire.
Example
She broiled the chicken until it was golden brown.
彼女は鶏肉を金色に焼くまで焼いた。
B2 noun, verb /ˈblækmeɪl/

blackmail

脅迫する
Meaning
the act of demanding money or advantage by threatening to reveal secrets; to force someone to act by using such threats
Example
He tried to blackmail her by threatening to reveal the documents.
彼は書類を公表すると脅して彼女を脅迫しようとした。
C2 noun /beɪz/

baize

粗いウールの布の一種
Meaning
A type of coarse woolen cloth, often green, used for covering tables such as billiard tables.
Example
The old card table was covered with worn baize.
古いカードテーブルは、擦り切れたベイズで覆われていました。
A2 verb /blɒk/

block

ブロックする
Meaning
to obstruct; to prevent passage or progress
Example
The fallen tree blocks the road.
倒れた木が道路をブロックしています。
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。
C2 verb /bɪˈhəʊv/

behove

適切である
Meaning
British spelling of 'behoove'; to be appropriate or necessary
Example
It would behove the company to listen to its customers.
会社は顧客の意見に耳を傾けるべきです。
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。
B1 noun /ˈbreɪs.lət/

Bracelet

ブレスレット
Meaning
an ornamental band worn around the wrist
Example
She received a gold bracelet as a birthday gift.
彼女は誕生日のプレゼントとして金のブレスレットをもらった。
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。
B2 noun /ˈbɒmɪŋ/

bombing

爆撃
Meaning
an attack using bombs or explosives
Example
The city was devastated by the bombing.
その都市は爆撃で壊滅的な被害を受けました。
B2 verb /briːd/

breed

繁殖する, 飼育する
Meaning
to produce young animals; to reproduce; to keep animals for producing young
Example
They breed horses on their farm.
彼らは農場で馬を育てています。
A2 noun ˈbʌt.ən

button

ボタン
Meaning
A small disk or knob sewn onto a garment, either to fasten it by being pushed through a slit made for the purpose, or for decoration.
Example
Press the button to activate the device.
デバイスを起動するにはボタンを押してください。
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.
A2 noun /bɒs/

boss

ボス
Meaning
a person who is in charge of a worker, group, or organization
Example
Her boss gave her a new project to complete.
彼女のボスは彼女に新しいプロジェクトを任せた。
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 adjective /ˈbrɔːni/

brawny

筋肉質な
Meaning
Physically strong and muscular.
Example
The brawny man lifted the heavy box with ease.
その筋肉質の男性は重い箱を軽々と持ち上げた。
C2 adjective /ˈbrækɪʃ/

brackish

塩水混合
Meaning
Slightly salty, often describing water that is a mix of fresh and seawater.
Example
The river estuary contained brackish water.
川の河口には塩水混合の水があった。
B2 verb /ˈbætər/

batter

繰り返し打つ
Meaning
To strike repeatedly with force.
Example
The waves battered the shoreline all night.
波が一晩中海岸を打ちました。
A1 verb (past participle of 'bear'), adjective /bɔːrn/

born

生まれた
Meaning
To come into life; brought into existence.
Example
He was born in Dhaka in 1995.
彼は1995年にダッカで生まれた。
C2 verb /bɪˈθɪŋk/

bethink

思い出す
Meaning
to cause oneself to consider or remember something
Example
He bethought himself of the promise he had made.
彼は自分がした約束を思い出した。
C2 noun /ˈbeɪlɔːr/

bailor

寄託者
Meaning
a person who temporarily transfers possession of goods or property to another under a bailment agreement
Example
The bailor entrusted the valuable artwork to the museum for safekeeping.
寄託者は美術品を博物館に預けた。
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。
C2 adjective /bəˈnɛfɪsənt/

beneficent

慈悲深い, 寛大な
Meaning
generous or doing good
Example
The beneficent leader donated funds to build a hospital.
寛大な指導者は病院を建設するために資金を寄付しました。
C2 verb /bɪlk/

bilk

だます
Meaning
To cheat or defraud someone of money or rights.
Example
The scammer tried to bilk elderly people out of their savings.
詐欺師は高齢者の貯金をだまし取ろうとした。
C2 noun /ˈblændɪʃmənt/

blandishment

お世辞
Meaning
flattering or pleasing statement or action used to persuade someone gently
Example
She used every blandishment to win his support.
彼女は彼の支持を得るためにあらゆるお世辞を使った。
C1 adjective /ˈbaʊn.tɪ.fəl/

bountiful

豊富な / 寛大な
Meaning
Large in quantity; abundant; generous in giving.
Example
The farmer was grateful for the bountiful harvest.
農家は豊富な収穫に感謝していた。
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。
A2 verb /bleɪm/

blame

非難する
Meaning
to hold responsible for a fault; to find fault with
Example
Don't blame me for the mistake.
間違いを私に責めないでください。
B2 adjective /ˈbruː.təl/

brutal

残酷
Meaning
extremely cruel or harsh; violent and without feeling
Example
The dictator’s rule was marked by brutal violence.
独裁者の統治は残酷な暴力によって特徴付けられていた。
C2 adjective /ˈbɪbjələs/

bibulous

酒好き
Meaning
Excessively fond of drinking alcohol.
Example
His bibulous habits worried his family.
彼の酒好きな習慣は家族を心配させた。
C2 noun /ˈbʌskɪn/

buskin

厚底ブーツ
Meaning
A type of thick-soled boot that reaches halfway to the knee; also associated with tragic drama in ancient times.
Example
The actor wore a buskin as part of his classical costume.
俳優は彼のクラシックな衣装の一部としてバスキンを履いていました。
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。
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 adjective /ˈbɔɪstərəs/

boisterous

騒々しい
Meaning
noisy, energetic, and cheerful; rowdy
Example
The children were boisterous during the birthday party.
誕生日パーティーで子供たちは騒々しかった。
C2 noun /bəˈsuːn/

bassoon

一種の大型木管楽器
Meaning
a large woodwind instrument with a deep sound
Example
The orchestra featured a beautiful bassoon solo.
オーケストラは素晴らしいバスーンのソロを披露しました。
B2 adjective /ˈbeə.rə.bəl/

Bearable

耐えられる; 我慢できる; あまり不快で痛みのない
Meaning
able to be endured; tolerable; not too unpleasant or painful
Example
The pain became bearable after taking the medicine.
薬を飲んだ後、痛みは耐えられるようになった。
C2 adjective /blaɪð/

blithe

無頓着
Meaning
Showing a casual and cheerful indifference considered improper or carefree happiness.
Example
She had a blithe disregard for the rules.
彼女はルールを無頓着に無視した。
C1 noun /baɪl/

Bile

胆汁
Meaning
a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder
Example
The liver produces bile to help digest fats.
肝臓は脂肪の消化を助けるために胆汁を生成します。
B2 noun /ˈbjʊəroʊ/

bureau

事務所/機関
Meaning
An office or agency that provides services or manages specific duties.
Example
The travel bureau helped them plan their vacation.
旅行局は彼らが休暇の計画を立てるのを手伝った。
B2 adjective /brɪsk/

Brisk

活発な; 速い; 元気な
Meaning
quick and energetic; lively; vigorous
Example
She took a brisk walk in the morning to feel energized.
彼女は朝、元気を感じるために活発に歩いた。
B1 noun /ˈbed ˌkʌv.ər/

Bed cover

ベッドカバー
Meaning
a protective covering for a bed, typically a bedspread or comforter
Example
She pulled the bed cover up to her chin to stay warm.
彼女は暖かさを保つためにベッドカバーを顎まで引き上げました。
A1 adjective /bɛst/

best

最高
Meaning
Of the highest quality, excellence, or standing.
Example
She is the best student in the class.
彼女はクラスで最高の生徒です。
C2 adjective /ˈbeɪlfəl/

baleful

威圧的な
Meaning
Threatening harm; menacing or expressing hatred.
Example
She gave him a baleful look after the insult.
侮辱の後、彼女は彼に威圧的な目を向けた。
C1 adjective /ˈbrɪslɪŋ/

bristling

逆立ちした; エネルギーに満ちた
Meaning
full of energy, anger, or excitement; showing bristles standing up
Example
He entered the room bristling with confidence.
彼は自信満々で部屋に入った。
B2 noun /ˈbɪtərnəs/

Bitterness

苦味
Meaning
anger and disappointment at being treated unfairly; resentment; a sharp, unpleasant taste
Example
She spoke with bitterness about her former employer.
彼女は前の雇用主について苦々しさを持って話しました。
C1 noun /ˈblʌdˌbæθ/

bloodbath

血の大惨事
Meaning
an event in which a lot of people are killed or injured, especially in a violent conflict
Example
The war turned into a bloody bloodbath.
戦争は血まみれの大虐殺に変わった。
C2 verb /ˈbraʊˌbiːt/

browbeat

脅す / 強制する
Meaning
To intimidate or bully someone into doing something
Example
The lawyer tried to browbeat the witness.
弁護士は証人を脅しつけようとした。