breakthrough
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B2 noun ˈbreɪk.θruː

breakthrough

ブレークスルー
Meaning
A sudden, dramatic, and important discovery or development.
Example
The breakthrough opens doors for new technology.
このブレークスルーは新しい技術への扉を開きます。
C2 verb /ˈbeɪɪŋ/

baying

吠える
Meaning
making a loud, prolonged barking or howling sound, especially of dogs
Example
The baying of the hounds echoed through the forest.
犬の鳴き声が森を通り抜けて響いた。
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。
B1 noun /ˈblen.dər/

Blender

ブレンダー
Meaning
an electric kitchen appliance used to mix, purée, or emulsify food and liquids
Example
She used the blender to make a delicious smoothie.
彼女は美味しいスムージーを作るためにブレンダーを使いました。
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。
C1 adjective /ˈblʌdləs/

bloodless

血のない
Meaning
without bloodshed; lacking violence or vitality
Example
The revolution was surprisingly bloodless.
革命は驚くべきことに血を流さなかった。
C1 verb /bɪˈhɛd/

behead

斬首する
Meaning
to cut off a person's or animal's head; to remove the leader or most important part
Example
The historical account describes how the traitor was beheaded as punishment.
歴史的記録は、罰として裏切り者が斬首された様子を描写している。
B2 noun ˈbɛntʃˌmɑːr.kɪŋ

benchmarking

基準設定と比較分析
Meaning
Comparing with a specific industry or competitor to set the best standards.
Example
Companies use benchmarking to assess their performance.
企業は自社のパフォーマンスを評価するためにベンチマーキングを利用しています。
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。
C2 noun /ˌbaɪ.oʊ.rɪˌmiː.diˈeɪ.ʃən/

bioremediation

バイオレメディエーション
Meaning
The use of living organisms to neutralize or remove environmental contaminants.
Example
Bioremediation helps remove toxins from polluted soil.
バイオレメディエーションは汚染された土壌から毒素を取り除くのに役立ちます。
C2 noun /ˈbroʊɡən/

brogan

重い靴
Meaning
A heavy, sturdy shoe, often made of leather.
Example
The farmer wore old brogans while working in the field.
農夫は畑で働いている間、古いブローガンを履いていました。
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 /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。
A2 noun /bɪl/

Bill

くちばし
Meaning
the beak of a bird, especially when it is broad and flat
Example
The duck used its bill to filter food from the water.
そのカモは水から食べ物をろ過するためにくちばしを使いました。
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.
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。
A2 noun /ˈbʊkʃɒp/

bookshop

書店
Meaning
a retail store where books are sold
Example
She spent an hour browsing in the small bookshop.
彼女は小さな書店で一時間過ごした。
B2 noun ˈbɛriəl saɪt

burial site

埋葬地
Meaning
A place where a dead body is buried.
Example
The burial site of the martyrs was near the riverbank.
殉教者の埋葬地は川岸の近くにありました。
B2 noun /bɪˈtreɪəl/

Betrayal

裏切り; 不忠
Meaning
the action of betraying one's country, group, or person; disloyalty
Example
His betrayal of their friendship hurt her deeply.
彼の友情に対する裏切りは、彼女を深く傷つけました。
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。
C1 noun /ˈbʊzəm/

bosom

胸
Meaning
the human chest, especially a woman’s breast; also used metaphorically to refer to closeness or intimacy
Example
She kept the secret close to her bosom.
彼女は秘密を胸にしまっておいた。
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 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。
A2 noun /bɜːrθ/

Birth

誕生; 起源; 始まり;
Meaning
the emergence of a baby or young from the body of its mother; the beginning or origin of something
Example
The birth of their first child was a joyful moment.
彼らの最初の子供の誕生は喜ばしい瞬間でした。
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。
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。
B2 noun /ˈbækˌsaɪd/

backside

背中
Meaning
the rear part or surface of something; informal term for the buttocks
Example
The kids slid down the hill on their backside.
子供たちは丘を背中で滑り降りました。
B2 noun /biːd/

Bead

ビーズ
Meaning
a small round object with a hole through it for threading
Example
She made a necklace with colorful beads.
彼女はカラフルなビーズでネックレスを作った。
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。
C1 noun /ˈbʊl.ək/

Bullock

牛
Meaning
a young bull; a castrated bull used for farm work
Example
The farmer used a bullock to plow the field.
農夫は田んぼを耕すために牛を使いました。
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。
B1 noun /ˈbles.ɪŋ/

Blessing

祝福; 贈り物;
Meaning
a beneficial thing for which one is grateful; divine favor
Example
Having good health is a blessing that we should cherish.
良い健康を持つことは、私たちが大切にすべき祝福です。
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。
C1 noun /buːn/

boon

恩恵
Meaning
A thing that is helpful or beneficial.
Example
The internet is a boon to modern education.
インターネットは現代教育にとって恩恵です。
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。
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。
A1 adjective /ˈbɪzi/

busy

忙しい
Meaning
actively engaged in work or activity; occupied
Example
He is too busy to answer the phone.
彼は電話に出るのがあまりにも忙しい。
C2 adjective /bɪˈfʌdld/

befuddled

困惑した
Meaning
confused, unable to think clearly
Example
He looked befuddled after hearing the complex instructions.
彼は複雑な指示を聞いた後、困惑したように見えました。
B2 verb /bræɡ/

brag

自慢する
Meaning
to talk proudly about oneself or one's achievements in an annoying way
Example
He always brags about his expensive car.
彼はいつも高価な車について自慢している。
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。
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。
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。
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。
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。
C2 noun /ˌbuː.ɡənˈvɪl.i.ə/

Bougainvillea

ブーゲンビリア
Meaning
a tropical climbing plant with colorful bracts surrounding small flowers
Example
The bougainvillea climbing over the garden wall creates a beautiful purple display.
庭の壁を登るブーゲンビリアが美しい紫色の展示を作り出します。
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.
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 /ˈblʌfər/

bluffer

はったり屋
Meaning
a person who pretends to be more confident, skilled, or knowledgeable than they really are; someone who deceives others by bluffing
Example
Everyone eventually realized that he was just a bluffer with no real experience.
彼がただのはったり屋だと皆が気づいた。
B2 noun /bɪd/

Bid

入札; 提案
Meaning
an offer to pay a certain amount for something; an attempt to obtain or achieve something
Example
She made a bid for the antique vase at the auction.
彼女はオークションでそのアンティークの花瓶に入札しました。
B1 noun /bʊk ˈsel.ər/

Book seller

本屋
Meaning
a person who sells books, especially as a business
Example
The book seller recommended a great novel for my summer reading.
本屋は私の夏の読書のために素晴らしい小説を勧めました。
B1 verb /bʌmp/

bump

衝突
Meaning
To hit something or someone by accident; to knock against something.
Example
He accidentally bumped into the door.
彼はドアに偶然ぶつかった。
C2 noun /ˈbɪɡ.ə.mɪst/

bigamist

重婚者
Meaning
A person who commits the crime of marrying someone while already married to another.
Example
The man was arrested for being a bigamist.
その男はビガミストであるため逮捕された。
C1 noun /ˈbeɪlɪf/

bailiff

裁判所の執行官
Meaning
An official who keeps order in a court, carries out court orders, or collects debts.
Example
The bailiff asked everyone to rise as the judge entered the courtroom.
裁判官が法廷に入ったとき、執行官は皆に立ち上がるように言いました。
B2 noun /ˈblæk.smɪθ/

Blacksmith

鍛冶屋
Meaning
a person who makes and repairs things made of iron
Example
The blacksmith hammered the hot iron into a horseshoe.
鍛冶屋は熱い鉄を金づちで打って蹄鉄を作った。
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 /ˈbjuːɡəl/

Bugle

バグル
Meaning
a brass musical instrument similar to a trumpet but without valves, used especially for military calls
Example
The soldier played the bugle to signal the start of the ceremony.
兵士は式典の開始を合図するためにバグルを吹いた
B2 noun /ˈbeə.rər/

Bearer

運び手; 書類の保持者
Meaning
a person who carries or brings something; holder of a document
Example
The bearer of this message must deliver it quickly.
このメッセージの運び手はそれを迅速に届けなければなりません。
A1 preposition /baɪ/

by

によって
Meaning
indicating the agent performing an action, or the means of achieving something
Example
The book was written by a famous author.
その本は有名な作家によって書かれました。
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。
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。
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。
C2 verb /bɪˈfɪt/

befit

ふさわしい
Meaning
to be suitable for; to be appropriate to
Example
Formal attire befits the seriousness of the occasion.
フォーマルな服装はその場の厳粛さにふさわしい。
C1 verb bɪˈkwiːð

bequeath

遺贈する
Meaning
Leave something to someone in a will; pass down or hand down to the next generation.
Example
The scientist bequeathed his research papers to the university.
科学者は彼の研究論文を大学に遺贈した。
A2 noun ˈbræntʃɪz

Branches

枝
Meaning
A part of a tree that grows out from the trunk or from a bough.
Example
Family tree branches show the relationship between family members.
家系図の枝は家族のメンバー間の関係を示します。
C1 verb /broʊtʃ/

broach

取り上げる
Meaning
to bring up a subject for discussion
Example
She decided to broach the topic of salary with her manager.
彼女はマネージャーと給料の話題を取り上げることに決めました。
B2 noun /bækˈtɪəriəm/

bacterium

バクテリア
Meaning
A single microscopic organism belonging to the group of bacteria.
Example
The doctor explained that a single bacterium can multiply rapidly under the right conditions.
医者は、1つのバクテリウムが適切な条件下で急速に増殖できることを説明しました。
B2 noun/verb /bʌst/

bust

Meaning
As a noun: A sculpture of a person's head, shoulders, and chest; As a verb: To break, smash, or arrest.
Example
The police busted the gang last night.
B2 noun /baɪˈɒɡrəfi/

Biography

伝記
Meaning
an account of someone's life written by someone else; the story of a person's life
Example
I'm reading a fascinating biography of Albert Einstein.
私はアルバート・アインシュタインの魅力的な伝記を読んでいます。
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。
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。
C1 adjective /bɪˈmjuːzd/

bemused

困惑した, ぼんやりした
Meaning
confused, puzzled, or lost in thought
Example
She looked bemused when he asked the strange question.
彼が奇妙な質問をしたとき、彼女は困惑しているように見えた。
B1 verb /braʊz/

browse

ブラウズする
Meaning
To look at or skim through casually, especially online or in a store
Example
She likes to browse books in the library.
彼女は図書館で本をブラウズするのが好きです。
C2 verb /biˈætɪfaɪ/

beatify

列聖
Meaning
to make blessed or holy, especially in the Roman Catholic Church, to declare a deceased person to be among the blessed
Example
The pope decided to beatify the martyr for his faith and sacrifice.
教皇はその信仰と犠牲により、殉教者をビーティファイすることを決定しました。
C1 noun /brəˈzɪər/

Brassiere

ブラジャー
Meaning
a woman's undergarment designed to support the breasts
Example
She bought a comfortable brassiere for daily wear.
彼女は日常的に着るために快適なブラジャーを買いました。
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。
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/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。
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 adjective /ˈblɪŋkəd/

blinkered

視野が狭い
Meaning
Having a limited or narrow outlook; unable or unwilling to consider other perspectives.
Example
His blinkered attitude stopped him from seeing the bigger picture.
彼の視野が狭い態度は、より大きな絵を見せなかった。
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。
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。
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。
C1 noun /bɒɡ/

bog

沼地
Meaning
an area of wet, spongy ground; a swamp or marsh
Example
The hikers got stuck in a bog.
ハイカーたちは沼地に足を取られました。
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 noun /ˈbeɪ.zəl siːdz/

Basil Seeds

バジルシード
Meaning
small black seeds from the basil plant, often used in drinks and desserts
Example
I added basil seeds to my lemonade for a refreshing drink.
私はレモネードにバジルシードを加えて、さっぱりとした飲み物を作りました。
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。
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。
C2 adjective /ˈbʌksəm/

buxom

豊満で魅力的な女性
Meaning
Plump, with a full figure and often large-breasted, especially used to describe women.
Example
The actress was described as a cheerful and buxom woman.
女優は明るくて豊満な女性として描かれました。
C1 verb /ˈbɑːrtər/

barter

Meaning
To exchange goods or services without using money.
Example
They bartered their crops for handmade tools.
C1 verb /bɪˈreɪt/

berate

叱る
Meaning
to scold or criticize angrily
Example
The teacher berated the student for being late.
先生は遅刻した生徒を叱った。
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 verb /bɪˈhuːvz/

behooves

必要である
Meaning
third person singular form of 'behoove'; means it is proper or necessary
Example
It behooves every citizen to follow the law.
すべての市民は法律を守るべきです。
B2 noun /bɑnd/

Bond

絆; 債券
Meaning
a close connection joining two or more people; a certificate of debt issued by a government or corporation
Example
The strong bond between the mother and child was evident.
母親と子供の間の強い絆は明らかでした。
C2 adjective /ˈbɔːlki/

balky

頑固
Meaning
difficult, uncooperative, or stubborn
Example
The balky printer refused to work when needed most.
頑固なプリンターは最も必要な時に動作を拒否しました。
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 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。
C1 adjective /ˈbæʃ.fəl/

Bashful

恥ずかしがり屋; 内気な; 控えめな; 簡単に恥ずかしくなる
Meaning
shy; timid; modest; easily embarrassed
Example
The bashful child hid behind her mother when meeting strangers.
その恥ずかしがり屋の子供は、見知らぬ人と会うときに母親の後ろに隠れました。
C2 noun, verb /ˈbɛvəl/

bevel

斜面
Meaning
A sloping edge or surface; to cut or shape an edge at an angle.
Example
The carpenter beveled the edges of the table.
大工はテーブルの端を斜めに切りました。
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。
B1 noun /ˈbɪldər/

builder

建設業者
Meaning
a person or company that constructs buildings or other structures
Example
The builder checked the site before starting the construction.
建設業者は建設を始める前に現場をチェックしました。
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。
C2 noun /ˈboʊsən/

boatswain

船員長
Meaning
a ship's officer in charge of equipment and the crew
Example
The boatswain supervised the sailors on deck.
ボーツウェインはデッキで船員を監督しました。
C1 noun /bəˈrɒmɪtər/

barometer

気圧計
Meaning
an instrument that measures atmospheric pressure
Example
The barometer indicated a storm was approaching.
バロメーターは嵐が近づいていることを示しました。
C1 noun /ˈbaɪoʊˌsfɪr/

Biosphere

バイオスフィア
Meaning
the regions of the surface and atmosphere of the earth occupied by living organisms
Example
Climate change is affecting the entire biosphere.
気候変動はバイオスフィア全体に影響を与えています。
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。
C2 adjective /ˈblæs.fə.məs/

blasphemous

冒涜的
Meaning
showing disrespect or lack of reverence for God or sacred things
Example
The book was banned for its blasphemous content.
その本は冒涜的な内容のため禁止されました。
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。
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.
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。
B2 noun /bɪˈliːvər/

believer

信者
Meaning
a person who believes in something, especially a religious faith, idea, or principle
Example
She is a strong believer in hard work and honesty.
彼女は努力と正直さを強く信じている。
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。
B1 noun /ˈbed ʃiːt/

Bed sheet

ベッドシーツ
Meaning
a large rectangular piece of cloth used as bedding to lie on or under
Example
The clean white bed sheet felt soft against her skin.
清潔な白いベッドシーツは彼女の肌に柔らかく感じました。
A1 noun /ˈbeɪbi/

baby

赤ちゃん
Meaning
a very young child, especially one newly or recently born
Example
The baby is sleeping peacefully in the crib.
赤ちゃんはベビーベッドで静かに寝ています。
B2 adverb /bɪˈfɔːr.hænd/

Beforehand

前もって; 事前に; あらかじめ
Meaning
in advance; ahead of time; earlier
Example
We prepared everything beforehand.
私たちは前もってすべて準備しました。
A1 adjective /bæd/

bad

悪い
Meaning
not good; unpleasant, harmful, or of poor quality
Example
The milk smells bad, so don’t drink it.
牛乳は悪臭がするので飲まないでください。
C2 verb /ˈbætn/

batten

固定する
Meaning
To fasten or secure something tightly.
Example
They battened down the hatches before the storm.
彼らは嵐の前にハッチをしっかりと固定した。
C2 adjective /ˈboʊvaɪn/

bovine

牛に関連する
Meaning
relating to cattle; showing a dull or sluggish nature
Example
Her bovine expression revealed no emotions.
彼女のボバインな表情は感情を示すことはなかった。
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。
C2 verb /breɪz/

braze

ブレイズ
Meaning
To join two pieces of metal by heating and melting a filler metal into the joint.
Example
The mechanic brazed the broken pipe to fix the leak.
メカニックは壊れたパイプを溶接して漏れを修理しました。
A2 noun /ˈbjuː.ti/

Beauty

美しさ
Meaning
the quality of being pleasing to look at; attractiveness
Example
The beauty of the sunset took my breath away.
夕日の美しさに息を呑んだ。
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.