A2 noun /ˈtɛstɪŋ/

testing

テスト

Meaning

the process of assessing or evaluating something, often by trying it out

Example

The testing of the new software is still ongoing.

新しいソフトウェアのテストはまだ進行中です。

B2 adjective /ˌθiːəˈrɛtɪkl/

theoretical

理論的

Meaning

Concerned with or based on theory rather than practical application.

Example

The idea remains largely theoretical without real-world evidence.

そのアイデアは実際の証拠がなくても、主に理論的なものとして残ります。

C2 noun /ˈtɒksɪn/

tocsin

警報ベル

Meaning

an alarm bell or signal; a warning that something bad is about to happen

Example

The data breach sounded a tocsin for stricter security.

データ漏洩は厳重なセキュリティ強化のための警報ベルのように鳴った。

B2 noun /ˈten.ʃən/

Tension

緊張

Meaning

mental or emotional strain; a strained state or condition

Example

The deadline created a lot of tension in the office.

締め切りがオフィスに多くの緊張を生みました。

C1 adverb /ˌðɛərˈɪn/

Therein

その中に;

Meaning

in that place; in that respect

Example

The box contains many treasures, and therein lies its value.

箱には多くの宝物があり、その中にその価値がある。

B2 verb ˈtrɪɡərz

triggers

引き起こす

Meaning

To cause or initiate something to happen

Example

Air pollution triggers chronic diseases.

大気汚染は慢性疾患を引き起こします。

B2 adjective /ˈtrʌst.wɜː.ði/

Trustworthy

信頼できる

Meaning

able to be relied on as honest or truthful; deserving of trust

Example

He is a trustworthy friend who always keeps his promises.

彼はいつも約束を守る信頼できる友人です。

B1 noun ˈθer.ə.pi

therapy

セラピー

Meaning

Treatment intended to relieve or heal a disorder; the treatment of a mental or physical disorder.

Example

Gene therapy offers hope for genetic disorders.

遺伝子治療は遺伝性疾患に希望を与えます。

A2 adjective /θɪk/

Thick

厚い; 濃い;

Meaning

having a large distance between opposite sides; dense; not thin

Example

The book has thick pages and a heavy cover.

その本は厚いページと重いカバーがあります。

C2 adjective /ˈtɔɪl.səm/

toilsome

骨の折れる

Meaning

Involving hard or exhausting work; laborious.

Example

The workers had a toilsome day in the hot sun.

作業員たちは暑い太陽の下で骨の折れる一日を過ごした。

C2 verb /trænsˈfɪɡjʊər/

transfigure

変形する

Meaning

To transform the outward appearance or form, often in a way that elevates or glorifies.

Example

The artist managed to transfigure simple clay into a beautiful sculpture.

アーティストは単純な粘土を美しい彫刻に変えることができました。

C1 noun /ˈtrɛʒərər/

treasurer

財務担当者

Meaning

a person responsible for managing the financial affairs of an organization

Example

The treasurer presented the annual financial report.

財務担当者は年次の財務報告書を提出しました。

A2 noun /ˈtrævələr/

traveler

旅行者

Meaning

a person who is traveling or who often travels

Example

The traveler rested at a small inn after a long journey.

旅行者は長い旅の後、小さな宿屋で休憩しました。

C1 noun /taɪˈreɪd/

tirade

激しい非難

Meaning

a long, angry, or critical speech

Example

The manager launched into a tirade about poor performance.

マネージャーは低いパフォーマンスについて長い激しい演説を行った。

C1 adjective /ˈtɛn.ju.əs/

tenuous

弱い / 薄い

Meaning

Very weak, thin, or slight; lacking a strong basis.

Example

The evidence against him is quite tenuous.

彼に対する証拠はかなり弱いです。

C1 noun /taɪˈkuːn/

tycoon

大富豪

Meaning

a wealthy, powerful businessperson

Example

The real estate tycoon invested in several skyscrapers.

不動産の大富豪は複数の超高層ビルに投資しました。

C2 adjective /ˈtɜːrbɪd/

turbid

濁った

Meaning

Cloudy, opaque, or thick with suspended matter; confused or obscure in meaning.

Example

The river water became turbid after the heavy rains.

激しい雨の後、川の水は濁った。

C1 noun /ˈtriːkəl/

treacle

濃厚で甘いシロップ

Meaning

A thick, sweet syrup; excessively sentimental speech or writing.

Example

She poured treacle over the pancakes.

彼女はパンケーキにシロップをかけた。

C1 adjective /tænˈdʒɛnʃəl/

tangential

接線の

Meaning

relating to or along a tangent; slightly or indirectly related to something

Example

His remarks were tangential to the main topic of discussion.

彼のコメントは議論の主要なトピックには関連していなかった。

B1 noun /tʃuˈɪʃ.ən/

tuition

授業料

Meaning

the fee for instruction or teaching, typically at a school or university

Example

The tuition for the college has increased this year.

大学の授業料は今年増加しました。

C1 noun /ˈtruː.ənt/

Truant

無断で学校を休む生徒; 責任を回避する人

Meaning

a student who stays away from school without permission; a person who shirks duty

Example

The principal called the parents when their child was caught playing truant.

校長は、子供が学校をさぼっているのを見つけたとき、親に電話をかけました。

B2 noun /ˈten.dən.si/

Tendency

傾向

Meaning

an inclination toward a particular characteristic or type of behavior

Example

She has a tendency to arrive late for meetings.

彼女は会議に遅れて到着する傾向があります。

A2 adjective /trəˈdɪʃənəl/

Traditional

伝統的な

Meaning

relating to or following long-established customs; conventional

Example

They had a traditional wedding ceremony.

彼らは伝統的な結婚式を行いました。

A2 noun /ˈtæksi/

taxi

タクシー

Meaning

A car licensed to transport passengers in exchange for payment of a fare.

Example

We hailed a taxi to get to the airport.

私たちは空港に行くためにタクシーを呼びました。

C2 adjective /trænsˈfjuːzəbl̩/

transfusible

輸血可能

Meaning

capable of being transfused, especially referring to blood or fluids

Example

Only transfusible blood types are used in the hospital.

病院では輸血可能な血液型のみが使用されます。

B2 noun /ˈtɒl.ər.əns/

Tolerance

寛容

Meaning

the ability to accept different opinions or behavior; willingness to allow something to exist

Example

Religious tolerance is important in a diverse society.

宗教の寛容さは多様な社会において重要です。

C1 adjective /ˈtɪp.tɒp/

Tiptop

最高の; 完璧な状態

Meaning

of the highest quality; excellent; in perfect condition

Example

The car is in tiptop condition.

車は最高の状態です。

C1 adjective /ˈtɑːrdi/

tardy

遅刻

Meaning

Delayed; arriving or happening late.

Example

The student received a warning for being tardy to class.

学生は授業に遅れて警告を受けました。

C1 adjective /ˈtæti/

tatty

使い古しの

Meaning

Worn out, shabby, or in poor condition.

Example

The sofa looked old and tatty after years of use.

ソファは長年の使用で古くて使い古しのように見えた。

B2 adjective /ˈtɔː.kə.tɪv/

Talkative

おしゃべり

Meaning

fond of talking; speaking freely and at length

Example

My talkative neighbor loves to chat about everything.

私のおしゃべりな隣人は、何でも話すのが大好きです。

B1 adjective /təˈrɪfɪk/

terrific

素晴らしい

Meaning

extremely good or excellent; very great or intense

Example

The concert last night was absolutely terrific.

昨夜のコンサートは絶対に素晴らしかった。

A2 noun /trɪk/

Trick

手品; だまし; 狡猾;

Meaning

a cunning act intended to deceive; a skillful action performed for entertainment

Example

The magician performed an amazing card trick that fooled everyone.

マジシャンは皆をだました驚くべきカードの手品を披露しました。

B2 adjective /traɪˈʌmfənt/

Triumphant

勝利した; 幸せな

Meaning

having won a battle or contest; rejoicing as a result of success

Example

The team was triumphant after winning the championship.

チームはチャンピオンシップに勝利した後、勝利者のように感じていた。

C2 noun /tɪlθ/

tilth

土壌の状態（作物を植えるための適合性）

Meaning

The physical condition of soil in relation to its suitability for planting crops.

Example

The farmer checked the soil's tilth before planting the seeds.

農家は種を植える前に土壌のtilthを確認しました。

B1 adjective /ˈtɛmpərɛri/

temporary

一時的な

Meaning

Lasting for only a limited period of time; not permanent.

Example

She found a temporary job during the summer break.

彼女は夏休み中に一時的な仕事を見つけました。

B2 noun /ˈθiːərɪst/

theorist

理論家

Meaning

A person who develops, studies, or explains theories in a particular field.

Example

The political theorist explained the impact of democracy on social structures.

政治的な理論家は、民主主義が社会構造に与える影響について説明しました。

C1 noun /ˈtjuːmʌlt/

tumult

騒動

Meaning

A loud, confused noise, especially caused by a crowd; commotion or disorder.

Example

The protest created a tumult in the city square.

抗議活動は市の広場で騒動を引き起こしました。

C2 noun /traɪst/

tryst

秘密の逢引

Meaning

a private romantic meeting between lovers

Example

They arranged a secret tryst in the park.

彼らは公園で秘密の逢引を手配した。

C1 noun /tækˈtɪʃ.ən/

tactician

戦術家

Meaning

a person who is skilled at planning and achieving goals, especially in military or business

Example

Napoleon was a brilliant tactician.

ナポレオンは素晴らしい戦術家でした。

B2 adverb /ˈθʌrəli/

Thoroughly

徹底的に; 完全に;

Meaning

completely; entirely; in a thorough manner

Example

She thoroughly cleaned the entire house before the guests arrived.

彼女はゲストが到着する前に家全体を徹底的に掃除しました。

B1 noun /ˈtɛmpəl/

temple

寺院

Meaning

a building used for the worship of a god or gods

Example

They visited an ancient temple during their trip to India.

インディアへの旅行中に古代の寺院を訪れました。

C1 noun /təˈlɛfəni/

telephony

電話技術

Meaning

the technology and systems for transmitting voice over distances by telephone

Example

Modern telephony has evolved to include internet-based calls.

現代のテレフォニーはインターネットベースの通話を含むように進化しました。

B2 noun ˈtreɪd.ɒf

trade-off

トレードオフ

Meaning

A situation where accepting one advantage means giving up another benefit.

Example

There is always a trade-off between price and quality.

価格と品質の間には常にトレードオフがあります。

C1 noun /ˈtem.pɪst/

Tempest

嵐

Meaning

a violent storm with strong winds; a state of great disturbance or tumult

Example

The sailors struggled to navigate through the fierce tempest.

船員たちは激しい嵐を乗り越えようと戦った。

C1 adjective /ˈtrɛtʃərəs/

treacherous

裏切りの

Meaning

Dangerously unstable or deceptive; likely to betray trust.

Example

The treacherous road made driving difficult.

裏切りの道路は運転を難しくしました。

C1 noun /trænsˈfjuːʒən/

transfusion

輸血

Meaning

the process of transferring blood or another fluid into a person's vein

Example

The patient received a blood transfusion after the accident.

事故後、患者は輸血を受けました。

C2 adjective /ˈtɔːrʃəs/

tortious

不法行為

Meaning

Relating to or involving a wrongful act leading to legal liability.

Example

The company was found guilty of tortious interference with contracts.

その企業は契約への不法干渉で有罪判決を受けた。

C2 noun /tiːˈtoʊtəlɪzəm/

teetotalism

アルコール完全断絶主義

Meaning

the practice or principle of abstaining completely from alcoholic drinks

Example

He practiced teetotalism throughout his life.

彼は一生涯ティートタリズムを実践した。

C1 adjective /tɛkˈtɑː.nɪk/

tectonic

構造的

Meaning

Relating to the structure of the earth's crust and the large-scale processes that take place within it.

Example

Tectonic movements cause earthquakes and mountain formation.

テクトニック運動は地震や山の形成を引き起こします。

C1 noun /təˈnæs.ə.ti/

tenacity

粘り強さ

Meaning

Determination, persistence, and the quality of not giving up

Example

His tenacity in solving problems led to his success.

問題を解決するための彼の粘り強さが成功につながった。

C2 noun /ˈtaɪroʊ/

tyro

初心者

Meaning

A beginner or novice in a field or activity.

Example

As a tyro in programming, she needed constant guidance.

プログラミングの初心者として、彼女は常に指導を必要としていた。

B2 noun /ˈtek.staɪl/

textile

織物

Meaning

a type of cloth or woven fabric made by knitting or weaving fibers

Example

Bangladesh is famous for its high-quality textile industry.

バングラデシュはその高品質なテキスタイル産業で有名です。

A1 adverb /ðɛn/

then

それから

Meaning

at that time; next in order of time or place

Example

We went to the park, and then we had lunch.

公園に行って、その後昼食をとりました。

C2 noun /ˈteɪbər/

Tabour

タムボール

Meaning

a small side drum or tambourine used especially in folk music

Example

The folk musician played a lively tune on his tabour.

フォークミュージシャンは自分のタムボールで生き生きとしたメロディーを演奏しました。

Meaning

A large sheet of strong, flexible, water-resistant material used for covering or protecting things.

Example

The workers used a tarpaulin to cover the construction materials from rain.

C2 adjective /ˈθʌroʊˌɡoʊɪŋ/

thoroughgoing

完全な、徹底的な

Meaning

carried out to the full extent; absolute and complete

Example

She is a thoroughgoing professional in every sense.

彼女はあらゆる意味で徹底的なプロフェッショナルです。

C1 noun /ˈtræpɪŋz/

trappings

外見

Meaning

the outward signs, features, or objects associated with a role, event, or status

Example

The king appeared with all the trappings of royalty.

王はすべての王族の外見とともに現れました。

C2 noun /tɔːˈtɒlədʒi/

tautology

不必要な繰り返し

Meaning

the unnecessary repetition of the same idea in different words

Example

The phrase 'it will happen or it won’t' is a tautology.

'それは起こるかもしれないし、起こらないかもしれない'というフレーズはトートロジーです。

B2 noun trænˈspær.ən.si

transparency

透明性

Meaning

The quality of being easy to perceive or detect; openness, accountability, and honesty in governance or operations.

Example

Transparency fosters trust in governance.

透明性はガバナンスにおける信頼を促進します。

C2 verb /trəˈdjuːs/

traduce

中傷する

Meaning

To speak badly of someone or tell lies to damage their reputation.

Example

He was furious when he found out that his rivals had traduced him.

彼は自分のライバルが彼を中傷したことを知って怒っていた。

C2 adjective /ˈtrʌk.jʊ.lənt/

truculent

攻撃的な

Meaning

Eager or quick to argue, fight, or show aggression.

Example

She became truculent when her ideas were challenged.

彼女は自分の考えが挑戦されると攻撃的になった。

A2 noun /ˈtɒpɪk/

topic

トピック

Meaning

a subject of conversation, discussion, or writing

Example

The topic of the meeting was company expansion.

会議のトピックは会社の拡張についてでした。

C2 noun /troʊθ/

troth

誓い, 忠誠

Meaning

Faith or loyalty when pledged in a solemn agreement or vow, especially in marriage.

Example

He pledged his troth to her before the gathering.

彼は集会の前に彼女に誓いを立てた。

B2 noun /tækˈseɪʃən/

taxation

課税

Meaning

The system of imposing and collecting taxes.

Example

Taxation is necessary for funding public services.

課税は公共サービスの資金調達に必要です。

B2 noun /ˈtæksˌpeɪər/

taxpayer

納税者

Meaning

a person who pays tax to the government

Example

The taxpayers' money is used to fund public services.

納税者のお金は公共サービスのために使われます。

B1 preposition /θruːˈaʊt/

throughout

通して

Meaning

in every part of a place or during the whole time of an event

Example

She worked throughout the night.

彼女は一晩中働き続けた。

B1 noun /ˈtiːspuːn/

teaspoon

幸せ

Meaning

a small spoon used for stirring drinks or eating soft foods, or for measuring small amounts of ingredients.

Example

Add a teaspoon of sugar to the tea.

彼女は賞を受け取ったとき、幸せを隠すことができませんでした。

C1 noun /ˈtem.pɚ.əns/

temperance

節制

Meaning

Moderation in action, thought, or feeling; restraint.

Example

Temperance is essential for a balanced life.

節制はバランスの取れた生活には欠かせません。

C1 noun /ˈtɪt.bɪt/

Titbit

美味しい食べ物の小さな一切れ; 面白い情報の小さな部分

Meaning

a small piece of tasty food; a small interesting piece of information

Example

She served delicious titbits at the party.

彼女はパーティーで美味しいおつまみを出しました。

B2 noun /ˈtrɪl.jən/

trillion

トリリオン

Meaning

a number equal to 1,000 billion, or 10^12

Example

The company's worth has risen to over a trillion dollars.

その企業の価値は1兆ドル以上に上昇しました。

C2 noun /traɪˈʌmvɪər/

triumvir

三人委員

Meaning

One of a group of three men holding power in ancient Rome.

Example

Caesar was a triumvir in the first Roman triumvirate.

カエサルは最初のローマの三人委員会の一員でした。

A2 adverb /twaɪs/

twice

二回

Meaning

two times

Example

I have seen that movie twice.

その映画を二回見ました。

B1 noun taɪm ˈmænɪdʒmənt

time management

時間管理

Meaning

The process of planning and exercising conscious control over the amount of time spent on specific activities

Example

Time management is crucial for success.

時間管理は成功のために非常に重要です。

C2 adjective /ˈtɪd.li/

Tiddley

軽く酔った; 小さいまたは微小

Meaning

slightly drunk; small or tiny

Example

After a few drinks, he felt a bit tiddley.

いくつかの飲み物を飲んだ後、彼は少しtiddliに感じた。

B2 verb /twiːk/

tweak

微調整

Meaning

to make small adjustments; to fine-tune something

Example

We need to tweak the design slightly.

デザインを少し調整する必要があります。

B2 noun /ˈtæd.poʊl/

Tadpole

おたまじゃくし

Meaning

the larval stage of a frog or toad, having gills and a tail

Example

The pond was full of tadpoles swimming around.

池はおたまじゃくしでいっぱいでした。

A2 adjective /ˈteɪ.sti/

Tasty

美味しい

Meaning

having a pleasant flavor; delicious

Example

The pizza was really tasty with fresh ingredients.

そのピザは新鮮な材料で本当に美味しかった。

C1 noun /ˈtæntrəm/

tantrum

癇癪

Meaning

An uncontrolled outburst of anger and frustration, typically in a young child.

Example

The child threw a tantrum when he didn’t get the toy.

子供はおもちゃをもらえなくて癇癪を起こした。

A2 noun tekˈnɒl.ə.dʒi

technology

技術

Meaning

The application of scientific knowledge for practical purposes

Example

Advanced technology reshapes industries.

先進的な技術が産業を再構築しています。

C1 adjective /traɪt/

trite

陳腐な

Meaning

Overused and lacking originality.

Example

The speech was full of trite phrases.

スピーチは陳腐なフレーズでいっぱいだった。

C1 noun /ˈtuːsəm/

twosome

ツーサム

Meaning

A pair of people considered together, often in a romantic or competitive context.

Example

They entered the dance competition as a twosome.

彼らはツーサムとしてダンスコンペティションに参加した。

C1 noun /ˌtrænsˈpɪəreɪʃən/

transpiration

蒸散

Meaning

The process by which plants lose water through their leaves, which plays a crucial role in plant cooling, nutrient transport, and the water cycle.

Example

Transpiration plays a key role in the water cycle and plant growth.

蒸散は水循環と植物の成長において重要な役割を果たします。

C2 noun ˈtɪl.ɪdʒ

tillage

耕作

Meaning

The preparation of land for growing crops.

Example

Excessive tillage can lead to soil erosion.

過度の耕作は土壌侵食を引き起こす可能性があります。

C1 noun /trɔːf/

trough

飼い葉桶、低点

Meaning

A long, narrow container from which animals eat or drink; also, a low point between waves or in business cycles.

Example

The cows drank water from the wooden trough.

牛は木製の飼い葉桶から水を飲みました。

A2 noun /teɪl/

Tail

尾

Meaning

the rear part of an animal that extends from the back or bottom

Example

The dog wagged its tail happily when it saw its owner.

犬は飼い主を見て嬉しそうに尾を振った。

B2 adjective /ˌθɛr.əˈpjuː.tɪk/

therapeutic

治療的

Meaning

Having a healing or beneficial effect on the body or mind.

Example

Meditation is highly therapeutic for mental well-being.

瞑想は精神的な健康に非常にセラピューティックです。

B2 noun /ˈtjuːmər/

tumor

腫瘍

Meaning

an abnormal mass of tissue caused by excessive cell growth

Example

The doctor found a benign tumor during the medical check-up.

医師は健康診断中に良性の腫瘍を見つけました。

C1 verb /ˈtɪŋkər/

tinker

いじる

Meaning

to make small adjustments or repairs to something, often experimentally or imperfectly

Example

He likes to tinker with old radios in his garage.

彼はガレージで古いラジオをいじるのが好きです。

C2 adjective /ˈtjuːtɪləri/

tutelary

守護神

Meaning

Relating to or serving as a guardian or protector, often used for deities or spirits.

Example

Athena was considered the tutelary goddess of Athens.

アテナはアテネの守護神と見なされていました。

B2 adjective /ˈtɛlɪŋ/

telling

重要な示唆

Meaning

Revealing something significant or giving important information.

Example

Her silence was more telling than words.

彼女の沈黙は言葉よりも重要だった。

B1 noun trend

trend

傾向

Meaning

A general direction in which something is developing or changing; a pattern or tendency.

Example

The current trend of deforestation is alarming.

現在の森林伐採の傾向は警戒すべきです。

C2 noun /ˈθɛspiən/

thespian

俳優

Meaning

An actor or actress; relating to drama or theater.

Example

The festival was filled with talented thespians from across the country.

フェスティバルは、国内各地から集まった才能豊かな俳優たちで満たされていました。

C1 noun /ˌtɒləˈreɪʃən/

toleration

寛容

Meaning

The practice of allowing something that one does not necessarily agree with.

Example

The government promoted religious toleration.

政府は宗教的寛容を促進した。

C2 verb /trænzˈmjuːt/

transmute

変換する

Meaning

to change in form, nature, or substance

Example

Alchemy aimed to transmute lead into gold.

錬金術は鉛を金に変えることを目指していた。

B1 verb /træk/

track

追跡する

Meaning

To follow or trace the course or progress of something.

Example

Someone can easily track your location on social media.

誰かがソーシャルメディアで簡単にあなたの位置を追跡できます。

B2 noun /traɪb/

tribe

部族

Meaning

a social group consisting of people with common customs, language, and culture

Example

The tribe lived in harmony with nature.

部族は自然と調和して生活していた。

B1 adjective /θrɪld/

thrilled

興奮した

Meaning

extremely happy or excited

Example

She was thrilled with the surprise party.

彼女はサプライズパーティーに興奮していた。

B2 noun /θret/

Threat

脅威

Meaning

a statement of intention to inflict harm; a person or thing likely to cause danger

Example

The storm poses a serious threat to coastal areas.

嵐は沿岸地域に深刻な脅威をもたらします。

B2 noun ˌtrænsfərˈmeɪʃən

transformation

変革

Meaning

A thorough or dramatic change in form, appearance, or character; a complete alteration or evolution.

Example

Digital literacy leads to economic transformation.

デジタルリテラシーは経済的な変革を導きます。

B2 adjective /ˈtrʌblsəm/

Troublesome

面倒な; 問題のある

Meaning

causing difficulty or annoyance; problematic

Example

The troublesome student disrupted the class again.

その面倒な学生はまたクラスを中断しました。