quantifiable
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
C1 adjective ˈkwɒn.tɪ.faɪ.ə.bəl

quantifiable

定量可能な
Meaning
Able to be expressed or measured as a quantity; capable of being counted or calculated.
Example
The impact of the project is quantifiable.
プロジェクトの影響は定量可能です。
B2 noun məˈmɔːriəl

memorial

記念碑
Meaning
A structure or building made to remind people of a person or event.
Example
Thousands gather at the National Memorial.
何千人もの人々が国立記念碑に集まります。
C1 noun /ˈmʌltɪplaɪər/

multiplier

乗数
Meaning
a number or factor by which another number is multiplied; something that increases the effect or value of something else
Example
In economics, government spending can act as a multiplier for economic growth.
経済学では、政府支出が成長の乗数となることがある。
B2 adjective /ˈdʒɔɪfəl/

joyful

喜ばしい
Meaning
full of joy and happiness; causing joy or delight
Example
She felt joyful when she heard the good news.
彼女は良い知らせを聞いて喜ばしい気持ちになった。
A1 adjective /ˈsɔːri/

sorry

ごめん
Meaning
feeling regret or sympathy
Example
She felt sorry for what had happened.
彼女は起こったことを後悔していた。
C1 verb kəˈrɒb.ə.reɪt

corroborate

確認する
Meaning
Confirm or give support to a statement, theory, or finding.
Example
The witness corroborated the defendant's testimony.
証人は被告の証言を裏付けました。
B1 noun /rɪˈsɜːtʃə(r)/

researcher

研究者
Meaning
a person who conducts research
Example
The researcher published her findings in a scientific journal.
研究者は科学的なジャーナルに彼女の研究結果を発表しました。
B2 noun /ˌdʒʌstɪfɪˈkeɪʃən/

justification

正当化
Meaning
a reason, explanation, or excuse that shows something is right or reasonable
Example
There is no justification for such rude behavior.
そのような失礼な行動には正当化の余地はない。
C1 noun /ˌlɛ.seɪ ˈfɛər/

laissez-faire

不干渉主義
Meaning
An economic policy where government does not intervene in business affairs.
Example
Laissez-faire policies encourage private enterprise.
レセ・フェール政策は民間企業を奨励します。
C1 noun /ˈnjuːtrɪənt dɪˈfɪʃənsi/

nutrient deficiency

栄養不足
Meaning
A lack of essential nutrients required for healthy plant growth, which can result in poor crop development, reduced yields, and increased susceptibility to diseases.
Example
Nutrient deficiency in the soil can reduce crop productivity.
土壌中の栄養不足は作物の生産性を減少させる可能性があります。
A2 adverb /kəˈrɛktli/

correctly

正しく
Meaning
in a way that is true, accurate, or without mistakes
Example
She answered all the questions correctly.
彼女はすべての質問に正しく答えました。
C1 verb /rɪˈtælieɪt/

retaliate

報復する
Meaning
to make an attack in return for a similar attack
Example
The army retaliated after the enemy attack.
軍隊は敵の攻撃の後、報復した。
C2 adjective /ˈɛksplɪkəbəl/

explicable

説明可能な
Meaning
able to be explained or understood
Example
His sudden anger was explicable given the stressful situation.
彼の突然の怒りは、ストレスの多い状況を考慮すれば説明可能だった。
C1 verb, noun /ˈbʌsəl/

bustle

騒々しさ、忙しさ
Meaning
to move in an energetic or noisy manner; busy activity in a place
Example
The marketplace bustled with vendors and customers.
市場は販売員と顧客で賑わっていた。
C2 adjective /ʌnˈtɛmpərd/

untempered

無調整
Meaning
not moderated or softened; lacking proper balance or control
Example
The untempered anger of the crowd caused chaos.
群衆の無調整な怒りが混乱を引き起こしました。
C1 adjective /ˌɪn.səˈbɔːr.dɪ.nət/

insubordinate

命令不服従
Meaning
Defiant of authority; disobedient to orders.
Example
The insubordinate employee refused to follow the manager's instructions.
命令不服従の従業員は、マネージャーの指示に従うことを拒否した。
C2 verb /ˈhɑːbəl/

hobble

よろけて歩く
Meaning
to walk awkwardly with difficulty, usually due to injury
Example
He hobbled across the room after twisting his ankle.
彼は足首をひねった後、部屋をよろよろと歩いた。
C1 adjective /ˌaʊtˈlændɪʃ/

outlandish

奇妙
Meaning
Looking or sounding bizarre or unfamiliar; strange.
Example
He wore an outlandish costume to the festival.
彼は祭りに奇妙な衣装を着ていました。
B2 adjective /bliːk/

bleak

陰鬱な
Meaning
cold, miserable, or without hope
Example
The future seemed bleak after the economic downturn.
経済不況後、未来は陰鬱に見えた。
B2 noun /ˈswiː.pər/

Sweeper

掃除人
Meaning
a person whose job is to clean floors and streets by sweeping
Example
The sweeper cleaned the school corridor every morning.
掃除人は毎朝学校の廊下を掃除しました。
B1 adjective /draɪd/

dried

乾燥
Meaning
without moisture; preserved by removing water
Example
She added some dried flowers to the vase for decoration.
彼女は装飾のために花瓶に乾燥した花を加えた。
C2 noun /ˈkjʊriˌoʊ/

curio

珍しい物
Meaning
a small unusual or interesting object, often collected for its rarity
Example
She bought a curio from the antique shop.
彼女は骨董店で珍しい物を買いました。
C1 noun /ˈtɒr.ənt/

Torrent

激流; 洪水
Meaning
a strong and fast-moving stream of water or other liquid; a sudden, violent, and copious outpouring
Example
The heavy rain created a torrent of water rushing down the mountain.
激しい雨が山を下る水の流れを作り出しました。
C2 noun /ɪˈreɪdiəns/

irradiance

放射輝度
Meaning
the quality of shining brightly; the intensity of light falling on a surface
Example
The irradiance of the sun at noon was overwhelming.
正午の太陽の放射輝度は圧倒的でした。
C1 verb, noun /mɛʃ/

mesh

メッシュ, 絡ませる
Meaning
To fit or work together properly; or a material made of interlaced threads.
Example
The two gears mesh perfectly to keep the machine running smoothly.
二つの歯車が完璧に噛み合って、機械がスムーズに動く。
A1 verb /mʌst/

must

しなければならない
Meaning
to be required or obligated to
Example
You must complete your homework before you go out.
あなたは外出する前に宿題を終わらせなければなりません。
B2 noun /dʒiˈɒl.ə.dʒi/

geology

地質学
Meaning
the science that deals with the Earth's physical structure and substances
Example
She studied geology to understand earthquakes.
彼女は地震を理解するために地質学を学びました。
C2 noun /mɪˈsænθrəpi/

misanthropy

人類嫌悪
Meaning
a general dislike, distrust, or hatred of humankind
Example
His misanthropy was evident in the way he avoided people.
彼の人類嫌悪は、彼が人々を避ける方法に明らかに現れていました。
C1 adjective /dɪsˈpæʃənət/

dispassionate

冷静な
Meaning
not influenced by strong emotion; impartial
Example
The judge remained dispassionate throughout the trial.
裁判官は裁判全体を通して冷静さを保ちました。
C2 adjective /ɪˈkwɪvəkəl/

equivocal

曖昧
Meaning
Open to more than one interpretation; ambiguous.
Example
His equivocal answer confused everyone.
彼の曖昧な答えは皆を混乱させた。
C1 adjective /ˈspɪndli/

spindly

細くて弱い
Meaning
Long, thin, and weak-looking
Example
The spindly tree bent under the weight of the snow.
細い木が雪の重みで曲がった。
A1 preposition/adverb/adjective/noun /ˌɪnˈsaɪd/

inside

幸せ
Meaning
Situated within something; the inner part of something.
Example
She waited inside the house until the rain stopped.
彼女は賞を受け取ったとき、自分の幸せを隠すことができませんでした。
C2 noun /oʊˈbeɪsəns/

obeisance

敬意
Meaning
A gesture of respect such as a bow or curtsy.
Example
They bowed in obeisance to the king.
彼らは王に対して敬意を示すためにお辞儀をした。
C1 adjective /ˈæŋ.ɡjə.lər/

Angular

角度的な
Meaning
having sharp corners or edges; relating to angles
Example
The building has an angular design with sharp corners.
その建物は鋭い角を持つ角度的なデザインです。
B1 noun /ˈsteɪtəs/

status

地位
Meaning
the social or professional position or condition of someone or something
Example
His social status improved after the promotion.
昇進後、彼の社会的地位は向上しました。
A2 adjective /ˈɔː.dɪ.nər.i/

Ordinary

普通の; 一般的な; 特別ではない
Meaning
normal; usual; not special
Example
It was just an ordinary day at the office.
それはオフィスでのただの普通の日でした。
A1 number /ˌfɪfˈtiːn/

fifteen

十五
Meaning
the number 15
Example
There are fifteen students in the class.
クラスには十五人の生徒がいます。
B2 verb ˈjuːnɪfaɪ

unify

統一する
Meaning
To make or become united, uniform, or whole; to bring together into a single unit.
Example
Adolescents unify with peers for social acceptance.
若者たちは社会的受け入れのために仲間と統一します。
C2 verb /ˈdɒdə/

dodder

震えながら歩く
Meaning
To move in a weak and unsteady way, especially due to old age.
Example
The old man doddered across the street with a cane.
老人は杖をついて震えながら通りを歩いていました。
B2 adjective /ˈpaʊərləs/

powerless

無力
Meaning
without ability, influence, or strength
Example
She felt powerless against the unfair system.
彼女は不公平なシステムに対して無力だと感じていた。
A2 noun /flaʊər/

Flour

小麦粉
Meaning
fine powder made by grinding wheat or other grains; used for making bread, cakes, and pastry
Example
She mixed flour with water to make dough for bread.
彼女はパンの生地を作るために、小麦粉と水を混ぜました。
C1 adjective /ˌsækrɪˈfɪʃəl/

sacrificial

犠牲的な
Meaning
Relating to or involving sacrifice.
Example
The lamb was used as a sacrificial offering in the ritual.
その羊は儀式で犠牲的な捧げ物として使われました。
C1 adjective /ʌnˈhoʊli/

Unholy

不浄な; 邪悪な; 不敬な
Meaning
wicked; sinful; profane
Example
The unholy alliance between the two companies caused public outrage.
その二つの会社の間の不浄な提携は、公共の怒りを引き起こしました。
B2 verb /rɪˈvɜːrt/

revert

戻る
Meaning
to return to a previous state, condition, or practice
Example
The system will revert to its original settings after the update.
システムは更新後、元の設定に戻ります。
C2 verb /ˈsɛreɪt/

serrate

ギザギザの縁を作る
Meaning
To make a saw-toothed edge or notched margin.
Example
The craftsman serrated the knife blade for better cutting.
職人はより良い切断のためにナイフの刃をセレイトしました。
C1 verb /mɑːrd/

marred

台無しにする
Meaning
to spoil or damage the quality or appearance of something
Example
The celebration was marred by bad weather.
お祝いは悪天候で台無しになりました。
B1 verb /preɪ/

pray

祈る
Meaning
to speak to God or a deity; to hope earnestly
Example
Many people pray for peace in the world.
多くの人々が世界の平和のために祈ります。
B1 noun /ˈkɒntɛkst/

context

文脈
Meaning
the circumstances or background relevant to an event, statement, or idea
Example
To understand the quote, you need to know the context in which it was said.
引用を理解するには、それが言われた文脈を知っている必要があります。
C2 adjective /ˌpɪkəˈrɛsk/

picaresque

悪党の英雄の物語
Meaning
relating to a style of fiction depicting the adventures of a roguish hero
Example
The novel is a picaresque tale of a clever vagabond.
その小説は賢い浮浪者のピカレスクの物語です。
C2 noun /ˈhʌm.ək/

hummock

小丘
Meaning
A small hill, mound, or ridge of earth or ice.
Example
The hikers rested on a grassy hummock by the river.
ハイカーたちは川のそばの草むらの小丘で休憩した。
C1 noun/adjective /dɪˈtɜː.rənt/

deterrent

抑止力
Meaning
A thing that discourages or is intended to discourage someone from doing something.
Example
A strict law serves as a deterrent to crime.
厳格な法律は犯罪の抑止力として機能します。
C2 noun /ɡæf/

gaff

間違い
Meaning
A social blunder or mistake; also a hook or device used in fishing or theater.
Example
He made a major gaff during the meeting by forgetting the client's name.
会議中に彼は顧客の名前を忘れて大きな間違いを犯した。
B2 adjective /ˌʌn.kəʊˈɒp.ər.ə.tɪv/

uncooperative

非協力的な
Meaning
not willing to help or work with others; unhelpful
Example
The witness was uncooperative and refused to answer questions.
証人は非協力的で、質問に答えることを拒否した。
C2 noun /ˈhɔːrs.liːt͡ʃ/

Horse-leach

馬のヒル
Meaning
a large species of leech that was traditionally used in veterinary medicine
Example
The veterinarian explained that horse-leach was once commonly used to treat horses.
獣医は、馬のヒルがかつて馬の治療に広く使われていたと説明しました。
C1 adjective /ˈɡreɪsləs/

graceless

無作法
Meaning
Lacking elegance, charm, or social refinement.
Example
His graceless behavior embarrassed everyone at the party.
彼の無作法な行動はパーティーでみんなを困らせた。
B1 noun /kəʊst/

Coast

海岸
Meaning
the part of the land near the sea; the edge of the land
Example
We drove along the coast to enjoy the view.
私たちは海岸沿いに車を走らせ、景色を楽しみました。
A1 adjective /rɒŋ/

wrong

間違い
Meaning
not correct or true; mistaken
Example
It is wrong to cheat on a test.
テストでカンニングするのは間違いです。
C1 noun /aɪˈtɪnərɛri/

itinerary

旅程
Meaning
A planned route or schedule of a journey or trip.
Example
The travel agent gave us a detailed itinerary for our vacation.
旅行代理店は私たちの休暇のために詳細な旅程を提供してくれました。
C1 adverb /ˌmæθəˈmætɪkli/

mathematically

数学的に
Meaning
in a way that relates to mathematics; using numbers, formulas, or logical calculation
Example
The problem can be solved mathematically rather than by guesswork.
その問題は推測ではなく数学的に解決できる。
C1 noun /ˈfɔːrmən/

foreman

労働者のグループを担当する人、特に工場や建設現場で
Meaning
a person in charge of a group of workers, especially in a factory or construction site
Example
The foreman supervised the workers on the construction site.
フォアマンは建設現場で作業員を監督しました。
C1 noun স্ক্রোলিং অ্যাডিকশন

scrolling addiction

スクロール依存症
Meaning
A compulsive need to continuously scroll through content on digital devices, particularly smartphones and social media platforms.
Example
Scrolling addiction is a growing concern among smartphone users.
スクロール依存症はスマートフォンユーザーの間で増加している懸念事項です。
A2 adjective /əˈwɛər/

aware

気づいている
Meaning
having knowledge or perception of a situation or fact
Example
She is aware of the risks involved.
彼女はそのリスクに気づいている。
C1 verb /kwɛl/

quell

鎮圧する
Meaning
To suppress or put an end to something, usually by force.
Example
The police were called to quell the violent protest.
警察は暴力的な抗議を鎮圧するために呼ばれました。
C1 adjective /ˈstrɪndʒənt/

stringent

厳格
Meaning
strict, precise, and exacting
Example
The government imposed stringent measures during the crisis.
政府は危機の間に厳しい措置を課しました。
A1 adjective/adverb /ɪˈnʌf/

enough

十分
Meaning
as much or as many as required
Example
We have enough food for everyone.
私たちは皆のために十分な食べ物があります。
C2 adjective /kənˈtraɪt/

contrite

後悔している
Meaning
feeling or showing remorse or guilt
Example
She was contrite after realizing her mistake.
彼女は自分の間違いに気づいた後、後悔していた。
C2 adjective /ˌʌnprəˈpɪʃəs/

unpropitious

不運な
Meaning
Not giving or indicating a good chance of success; unfavorable.
Example
The team began their journey under unpropitious weather conditions.
チームは不運な天候の中で旅を始めました。
C1 noun /beɪl/

bail

保釈
Meaning
the temporary release of an accused person awaiting trial, often with a financial guarantee
Example
He was granted bail after his arrest.
逮捕後、彼は保釈されました。
C1 noun /ˈʌp.ʃɒt/

Upshot

結果; 結論
Meaning
the final result or outcome of a series of events; conclusion
Example
The upshot of the meeting was a decision to postpone the project.
会議の結果はプロジェクトの延期を決定することでした。
A2 noun/verb /ˈkɒntækt/

contact

接触
Meaning
Communication or connection with someone.
Example
You should contact your doctor if symptoms persist.
症状が続く場合は、医師にコンタクトを取るべきです。
B2 noun /ˈjuː.sɪdʒ/

Usage

使用
Meaning
the action of using something; the way in which words are used in a language
Example
The dictionary explains the correct usage of difficult words.
辞書は難しい言葉の正しい使い方を説明しています。
B2 noun /ˈprɒvɪns/

province

Meaning
a principal administrative division of certain countries or empires.
Example
The province is known for its rich cultural heritage and stunning landscapes.
その省は豊かな文化遺産と素晴らしい自然景観で知られています。
B2 adjective /ˈpɑːr.ʃəl/

Partial

部分的; 偏見のある;
Meaning
incomplete; showing bias or prejudice
Example
The judge gave a partial decision in favor of the defendant.
裁判官は被告人に有利な部分的な決定を下した。
B2 noun ˈlɪv.ɪŋ ˈstæn.dədz

living standards

生活水準
Meaning
The degree of wealth and material comfort available to a person or community; quality of life.
Example
High living standards improve satisfaction.
高い生活水準は満足度を向上させます。
B2 adverb /ˈdɛspərətli/

desperately

必死に
Meaning
in a way that shows despair or great need
Example
He called for help desperately after the accident.
事故後、彼は必死に助けを求めた。
A2 noun /nɒk/

Knock

ノック; 叩く
Meaning
a sudden sharp blow; the sound of striking something
Example
There was a loud knock at the door late at night.
深夜にドアで大きなノックの音がしました。
B2 adjective /kənˈdʒɛstɪd/

congested

渋滞
Meaning
Blocked up with too much traffic or crowding.
Example
The road was congested during rush hour.
ラッシュアワー中、道路は渋滞していました。
B1 noun dɪˈfens

defense

防御
Meaning
The action of defending from or resisting attack; protection from harm or danger.
Example
Defense was one of the central subjects.
防御は主要なテーマの一つだった。
B1 noun /ˈhaɪdʒiːn/

hygiene

Meaning
Conditions or practices conducive to maintaining health and preventing disease.
Example
Good hygiene is essential for preventing the spread of infections.
C1 adjective /ɪnˈfriːkwənt/

infrequent

稀な
Meaning
Happening rarely or not often.
Example
He made infrequent visits to his hometown after moving abroad.
彼は海外に移住した後、故郷にあまり頻繁に訪れることはありませんでした。
A2 noun /ˈoʊpənɪŋ/

opening

開店
Meaning
an act or instance of beginning something
Example
The opening of the new store was a huge success.
新しい店のオープニングは大成功でした。
A1 verb /miːt/

meet

会う
Meaning
to come into the presence of; to encounter
Example
I will meet you at the café.
カフェで会います。
A2 noun /ˈpɛni/

penny

ペニー
Meaning
a small coin of low value; a very small amount of money
Example
He found a penny on the sidewalk and smiled.
彼は歩道でペニーを見つけて微笑んだ。
A2 noun /ˌʌndərˈstændɪŋ/

understanding

理解
Meaning
the ability to grasp the meaning, significance, or nature of something
Example
Her understanding of the issue was impressive.
彼女の問題に対する理解は印象的でした。
A2 adverb /ˈsɪə.ri.əs.li/

seriously

真剣に
Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
彼女はその問題を非常に真剣に取り扱った。
A2 noun /ˈpleɪər/

player

選手
Meaning
a person who participates in a game or sport
Example
The player scored the winning goal.
選手は決勝ゴールを決めました。
A2 noun /pəˈliːsmən/

policeman

警察官
Meaning
a man whose job is to enforce the law and keep public order
Example
The policeman directed the traffic at the intersection.
警察官は交差点で交通を指導しました。
B2 noun /ˈɡwɑːvə/

Guava

グアバ
Meaning
a tropical fruit with sweet pink or white flesh and small seeds
Example
I love eating fresh guava from the tree in our garden.
私は庭の木から新鮮なグアバを食べるのが大好きです。
B2 adverb /ˈskɪl.fəl.i/

Skilfully/US: Skillfully

巧みに
Meaning
in a way that shows ability and training; expertly
Example
She skilfully painted the portrait in just two hours.
彼女は二時間で巧みに肖像を描いた。
A2 noun /væn/

van

バン
Meaning
a large vehicle used for transporting goods or people
Example
The delivery van stopped in front of our house.
配送バンが私たちの家の前で止まりました。
B2 noun /ˈɡræs.hɒp.ər/

Grass-hopper

バッタ
Meaning
a jumping insect with long hind legs that feeds on grass and plants
Example
The grasshopper jumped from one leaf to another.
バッタは一枚の葉から別の葉へ跳びました。
C1 adjective /ˈsɒnɪk/

sonic

音速の
Meaning
Relating to or involving sound waves or speed of sound.
Example
The jet created a loud boom when it broke the sonic barrier.
ジェット機は音速の壁を越えたとき、大きな爆発音を作り出しました。
C1 verb /tʃɑːr/

char

焦げる
Meaning
To burn or scorch something so that it becomes blackened.
Example
The cook accidentally charred the steak.
シェフはステーキを焼きすぎてしまった。
C1 noun /huːf/

Hoof

ひづめ
Meaning
the hard part covering the foot of horses, cattle, sheep, and other animals
Example
The horse's hoof was injured after stepping on a sharp rock.
馬のひづめは鋭い岩に踏んだ後、けがをしました。
C1 noun /kənˈfaɪnmənt/

confinement

監禁
Meaning
the state of being confined or restricted
Example
The prisoner endured years of confinement.
囚人は何年もの間監禁されていた。
C1 adjective /ˌrɛmɪˈnɪsənt/

reminiscent

思い出させる
Meaning
Tending to remind one of something; suggestive of something in the past.
Example
The smell of rain is reminiscent of my childhood in the village.
雨の匂いは私の村での子供時代を思い出させる。
C2 noun /ˈlændˌhoʊl.dər/

landholder

土地所有者
Meaning
a person who owns land, especially in large amounts
Example
The landholder leased part of his property to local farmers.
土地所有者は自分の財産の一部を地元の農民に貸しました。
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

無関心
Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
無関心な親は子供を何時間も一人で放置した。
B2 verb /ˈbrɔːdən/

broaden

広げる
Meaning
to make wider or larger in scope; to expand ideas, experience, or understanding
Example
Travel can broaden your perspective on different cultures.
旅行は異なる文化への視野を広げてくれる。
B2 noun /ˈproʊtəˌtaɪp/

prototype

プロトタイプ
Meaning
The first model or version of something, used as a sample for testing or improvement.
Example
The company built a prototype of the new smartphone before mass production.
会社は大量生産の前に新しいスマートフォンのプロトタイプを作成しました。
C1 noun /moʊˈzeɪɪk/

mosaic

Meaning
A picture or pattern produced by arranging together small pieces of stone, tile, or glass.
Example
The church ceiling was decorated with a beautiful mosaic.
C1 verb /ɪkˈstoʊl/

extol

称賛する
Meaning
to praise enthusiastically and highly
Example
The teacher extolled the student's dedication and hard work.
先生は生徒の献身と努力を称賛しました。
C2 noun /ˈæn.ə.lɪst/

annalist

年表作成者
Meaning
A person who writes annals or records events year by year.
Example
The annalist carefully documented the events of the king's reign.
アナリストは王の統治期間の出来事を慎重に記録しました。
C2 noun /ˌpaɪroʊˈmeɪniæk/

pyromaniac

放火魔
Meaning
A person with an uncontrollable desire to set things on fire.
Example
The pyromaniac was arrested for setting several buildings ablaze.
放火魔は数軒の建物に火をつけたことで逮捕された。
B2 adjective /stɪf/

Stiff

硬直した; 固い; 堅固な
Meaning
not easily bent or changed; rigid; firm
Example
The old wooden board was too stiff to bend.
古い木の板は曲がりにくく、硬すぎた。
C1 noun /trʌsˈtiː/

trustee

受託者
Meaning
a person who holds or manages property or assets for the benefit of others
Example
She was appointed as the trustee of the family estate.
彼女は家族の財産の受託者に任命された。
C1 adjective /pəˈrɪfərəl/

peripheral

周辺的
Meaning
Relating to or situated on the edge or outer parts of something.
Example
The town is located on the peripheral area of the city.
町は都市の周辺エリアに位置しています。
B2 adjective /ˈfɛdərəl/

federal

フェデラル
Meaning
Relating to the central government of a federation.
Example
The federal government passed a new law on healthcare.
連邦政府は医療制度に関する新しい法律を通過させました。
B2 noun /ˈreɪʃoʊ/

ratio

比率
Meaning
a relationship between two numbers showing how many times the first number contains the second
Example
The ratio of boys to girls in the class is 2:1.
クラスでの男の子と女の子の比率は2:1です。
A2 noun /kənˌɡrætʃ.əˈleɪ.ʃənz/

Congratulations

おめでとう
Meaning
words expressing praise for an achievement or good wishes on a special occasion
Example
Congratulations on your promotion! You really deserved this success.
昇進おめでとう!本当にこの成功に値するよ。
B1 noun /ˈæŋɡl/

angle

角度
Meaning
The space between two intersecting lines or surfaces at the point where they meet.
Example
The teacher explained how to measure an angle in geometry.
先生は数学で角度を測る方法を説明しました。
B2 adjective /ræʃ/

rash

軽率, 無謀
Meaning
Acting quickly without careful consideration; reckless.
Example
It was a rash decision to invest without research.
調査なしで投資するのは無謀な決断だった。
C1 verb /ɪɡˈzɔːlt/

exalt

Meaning
to praise highly or raise in rank, honor, or power
Example
The community exalted the teacher for his dedication.
C2 adjective /ˈruːmi/

rheumy

涙目
Meaning
Watery, especially referring to the eyes.
Example
His rheumy eyes showed signs of age and fatigue.
彼の涙目は年齢と疲れの兆しを示していた。
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

神経可塑性
Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
ニューロプラスティシティは、脳が怪我の後で再配線できるようにします。
B2 noun /ˌɛkspɜːˈtiːz/

expertise

専門知識
Meaning
Expert knowledge or skill in a particular area.
Example
His expertise in graphic design is widely recognized.
彼のグラフィックデザインの専門知識は広く認められています。
C2 noun /aɪˈoʊtə/

iota

微小な量
Meaning
An extremely small amount.
Example
He did not show an iota of fear.
彼は恐怖の一片も見せませんでした。
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 adjective /ˈnɪɡərdli/

niggardly

ケチ
Meaning
unwilling to spend or give; stingy or miserly
Example
He was too niggardly to leave a decent tip.
彼はまともなチップを置くにはあまりにケチだった。
C1 noun /məˈdɜːrnəti/

modernity

現代性
Meaning
The quality or condition of being modern; up-to-date ideas, practices, or style.
Example
The city’s architecture reflects both tradition and modernity.
その都市の建築は、伝統と現代性の両方を反映しています。
C1 adjective /ˌəʊ.vərˈɑː.tʃɪŋ/

overarching

全体的な, 包括的な, 包み込む
Meaning
Comprehensive or all-embracing; forming an arch over something.
Example
The overarching theme of the book is human resilience.
その本の大きなテーマは人間の回復力です。