rationlize
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C1 verb /ˈræʃənaɪz/

rationlize

合理化する
Meaning
to justify or explain something with logical reasons, even if not appropriate or true
Example
He tried to rationlize his mistake by blaming the system.
彼はシステムを責めて自分のミスを合理化しようとした。
B1 verb /ˈɪndɪkeɪt/

indicate

示す
Meaning
to point out; to show or suggest; to be a sign of
Example
The red light indicates that you should stop.
赤い信号は停止すべきことを示しています。
B2 noun prɒsˈpɛr.ɪ.ti

prosperity

繁栄
Meaning
The state of being prosperous; success or wealth.
Example
The country achieved great prosperity during the last decade.
その国は過去十年間で大きな繁栄を達成しました。
B1 adjective /ˌstreɪtˈfɔːwəd/

straightforward

簡単
Meaning
easy to understand or do; simple
Example
Her explanation was straightforward and clear.
彼女の説明は簡単で明確でした。
C1 noun /ˌprəʊ.baɪˈɒt.ɪks/

probiotics

プロバイオティクス
Meaning
Live microorganisms that, when administered in adequate amounts, confer health benefits to the host, especially for digestive health.
Example
Probiotics improve digestion and enhance gut health.
プロバイオティクスは消化を改善し、腸の健康を促進します。
B1 verb, adjective /spɛnt/

spent

使い果たされた, 疲れ切った
Meaning
Past tense and past participle of 'spend'; also used as an adjective meaning exhausted or used up.
Example
She spent all her energy preparing for the exam.
彼女は試験の準備に全てのエネルギーを使い果たした。
B1 verb /ˈʌpˌɡreɪd/

upgrade

アップグレード
Meaning
to raise something to a higher standard, improve
Example
We decided to upgrade the software to the latest version.
私たちはソフトウェアを最新バージョンにアップグレードすることに決めました。
A2 noun /ˈpɪərɪəd/

period

期間
Meaning
a length or portion of time
Example
The meeting will last for a period of two hours.
会議は2時間の期間続きます。
C2 adjective /ˈdɔːrsəl/

dorsal

背鰭
Meaning
Relating to the back or upper side of an animal or body part.
Example
Sharks have a prominent dorsal fin.
サメは目立つ背鰭を持っています。
C2 verb /rɪˈkwaɪt/

requite

返す
Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
彼女は彼の親切に思慮深い贈り物で報いました。
C1 noun /ˈpreɪsiː/

precis

要約
Meaning
A concise summary of a text or speech.
Example
The student submitted a précis of the long article.
学生は長い記事の要約を提出しました。
C1 noun /təˈbuː/

taboo

Meaning
a social or cultural prohibition against certain practices or discussions
Example
Talking about money is considered a taboo in some cultures.
A2 noun /spiːd/

Speed

速度; スピード
Meaning
the rate at which someone or something moves or operates
Example
The car reached a speed of 100 miles per hour.
車は時速100マイルのスピードに達した。
B2 adjective /ˈpen.dɪŋ/

Pending

保留中; 未決定; 進行中
Meaning
awaiting; not yet decided or settled; in the process of being completed
Example
The application is still pending approval.
申請はまだ承認待ちです。
B2 noun ˈsuː.pər.fuːdz

superfoods

スーパーフード
Meaning
Nutrient-dense foods that are particularly beneficial for health and well-being.
Example
Blueberries and spinach are superfoods rich in vitamins.
ブルーベリーとほうれん草はビタミン豊富なスーパーフードです。
B2 noun /ˈfreɪ.ɡrəns/

Fragrance

香り; 香水
Meaning
a pleasant, sweet smell; a perfume or cologne
Example
The fragrance of jasmine flowers filled the entire garden in the evening.
ジャスミンの花の香りが夕方、庭全体に広がった。
B2 adjective /ˈlɪb.ər.əl/

Liberal

リベラル; 寛容な; 寛大な; 思考が進歩的な
Meaning
open-minded; tolerant; generous; progressive in thinking
Example
She has a liberal attitude towards different cultures and beliefs.
彼女はさまざまな文化や信念に対してリベラルな態度を持っています。
B2 noun /ɡriːn ˈtʃɪl.i/

Green Chili

青唐辛子
Meaning
unripe chili pepper that is green in color and has a spicy taste
Example
She added chopped green chili to the salad for extra heat.
彼女はサラダに追加の辛さを加えるために切った青唐辛子を加えた。
C2 noun /ˈstriːmlɪt/

streamlet

小川
Meaning
a small stream; a tiny brook or rivulet
Example
A streamlet flowed through the meadow.
小川が草地を流れていました。
B2 noun/adjective /ˈmɪnətʃər/ or /ˈmɪniətʃʊr/

miniature

ミニチュア版
Meaning
a very small version of something; small in scale or size
Example
The artist created a miniature model of the castle.
アーティストは城のミニチュアモデルを作りました。
C2 phrase /lɛt ðɛm ˈθɪə.ri/

let them theory

彼らに好きなことを考えさせる理論
Meaning
A philosophy of not trying to control others' actions or opinions and allowing them to be themselves.
Example
He follows the Let them theory and ignores negativity.
彼は「彼らに好きなことを考えさせる理論」を実践し、否定的な考えを無視します。
C1 adjective ʌnˈskruːpjʊləs

unscrupulous

不道徳な
Meaning
Having or showing no moral principles; not honest or fair.
Example
Unscrupulous peers can lead adolescents to delinquency.
不道徳な仲間は、若者を犯罪に導くことがあります。
A1 adjective /sloʊ/

slow

遅い
Meaning
moving or happening at a low speed
Example
The car moved slowly down the street.
車は通りをゆっくり走っていました。
A2 verb /əˈraɪv/

arrive

到着する
Meaning
to reach a destination; to come to a place
Example
The train will arrive at the station in ten minutes.
電車は10分以内に駅に到着します。
C2 adjective /ˈvɛdʒɪtəl/

vegetal

植物性の
Meaning
relating to or consisting of plants or vegetation
Example
The soup had a distinct vegetal flavor.
スープには独特の植物性の味がありました。
B2 adjective /ˈstʌnɪŋ/

stunning

驚くべき
Meaning
extremely impressive or attractive
Example
The view from the top of the mountain was absolutely stunning.
山の頂上からの景色は本当に驚くべきものでした。
B2 noun /ˈwʊd.pek.ər/

Woodpecker

キツツキ
Meaning
a bird that pecks at tree bark to find insects and create nesting holes
Example
The woodpecker hammered against the oak tree.
キツツキはオークの木を叩いた。
A1 noun /koʊld drɪŋk/

Cold drink

冷たい飲み物
Meaning
A chilled beverage; a refreshing drink served cold
Example
I ordered a cold drink to beat the summer heat.
夏の暑さを乗り切るために冷たい飲み物を注文しました。
C1 noun /pʌn/

pun

言葉遊び
Meaning
A humorous use of words that suggests different meanings or words that sound alike.
Example
He made a clever pun about the bakery's bread rising.
彼はベーカリーでパンが膨らんでいることについて巧妙な言葉遊びをしました。
C2 verb, noun /ˈɡoʊld.brɪk/

goldbrick

仕事を避ける
Meaning
to avoid work or duty; a person who shirks responsibility
Example
He was accused of goldbricking while the rest of the team worked hard.
彼は仕事を避けていると非難されたが、他のチームは一生懸命働いていた。
B2 noun ˌriːfɔːˈreɪʃən

reforestation

再植林
Meaning
The natural or intentional restocking of existing forests and woodlands that have been depleted.
Example
Reforestation efforts are crucial to restoring ecosystems.
再植林の努力は、生態系の回復に重要です。
C1 noun /ˈmeɪsən/

mason

石工
Meaning
a person skilled in building with stone, brick, or concrete
Example
The mason carefully laid the bricks for the new house.
石工は新しい家のために慎重にレンガを積みました。
C1 verb /ˈwɪð.ər/

wither

枯れる
Meaning
to dry up and die, typically used for plants
Example
The flowers will wither without enough water.
花は十分な水がないと枯れてしまう。
B1 verb /ˈθretən/

threaten

脅す
Meaning
to express an intention to harm or punish someone; to be likely to cause harm
Example
The storm clouds threaten to bring heavy rain tonight.
嵐の雲は今夜激しい雨をもたらすと脅かしています。
C2 noun/verb /ˈʌpˌkæst/

upcast

上に投げる
Meaning
Verb: To cast or throw upward. Noun: Something thrown or directed upward.
Example
The fisherman upcast his net into the air.
漁師は彼の網を空中に投げた。
B2 noun /ɡrɪp/

Grip

しっかりした握り; 握る力; ハンドルまたはグリップの位置
Meaning
a firm hold or grasp; the power of holding something firmly; a handle or handhold
Example
The rock climber lost his grip and fell several feet before the safety rope caught him.
ロッククライマーはグリップを失い、安全ロープが彼を捕える前に数フィート落ちた。
C1 noun /ˈkɜːrlər/

curler

カーラー
Meaning
A small roller used for curling hair.
Example
She used a curler to style her hair for the party.
彼女はパーティーのために髪をスタイリングするためにカールラーを使った。
C1 adjective /ˈpɪθ.i/

pithy

簡潔で意味深い
Meaning
concise and meaningful; full of substance
Example
She gave a pithy comment that summarized the issue perfectly.
彼女は問題を完璧に要約した簡潔なコメントをしました。
C2 adjective /ˈslʌvənli/

slovenly

だらしない
Meaning
Untidy or careless in appearance, habits, or work.
Example
His slovenly appearance made a bad impression at the interview.
彼のだらしない外見は面接で悪い印象を与えました。
C2 noun /ˈɡʌp.i fɪʃ/

Guppy fish

グッピー
Meaning
a small colorful freshwater fish popular in aquariums, known for its vibrant colors and easy breeding
Example
The guppy fish is perfect for beginners who want to start an aquarium.
グッピーは、水槽を始めたい初心者にぴったりです。
C1 adjective /ˈen.vi.ə.bəl/

Enviable

うらやましい
Meaning
causing envy; desirable
Example
Her success was enviable among her peers.
彼女の成功は仲間の間でうらやましかった。
C2 verb /miːt/

mete

分配する
Meaning
To dispense or allot justice, punishment, or harsh treatment.
Example
The judge will mete out punishment according to the crime.
裁判官は犯行に応じて罰を分配します。
C1 adjective /kənˈtɪn.ju.əl/

Continual

継続的な; 絶え間ない
Meaning
happening repeatedly over a long period of time; constant and uninterrupted
Example
The continual noise from the construction site was very annoying.
建設現場からの継続的な音は非常に迷惑でした。
C1 adjective /kənˈstreɪnd/

constrained

制約された、無理に作られた
Meaning
appearing forced, unnatural, or restricted
Example
He gave a constrained smile during the awkward meeting.
彼は気まずい会議で強制的な笑顔を見せた。
C2 noun /tɑːrn/

tarn

山間の湖
Meaning
A small mountain lake or pool.
Example
We camped near a tranquil tarn in the highlands.
私たちは高原で静かな山間の湖の近くにキャンプをしました。
C2 adverb /əˈsʌndər/

asunder

バラバラに
Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
古代の帝国は戦争でバラバラにされてしまった。
C2 noun /səbˈdʌk.ʃən/

subduction

地殻の一層が別の層の下に移動すること。
Meaning
The lateral and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Example
The Pacific Ring of Fire is an area of intense subduction.
太平洋の火の輪は激しいサブダクションの領域です。
C1 adjective /ˈpoʊləraɪzd/

polarized

分極された
Meaning
divided into two sharply contrasting groups or opinions
Example
The debate polarized the community on the issue of climate change.
その議論は気候変動問題についてコミュニティを分裂させました。
A1 noun /ˈkɪtʃən/

Kitchen

キッチン
Meaning
a room or area where food is prepared and cooked
Example
The kitchen was filled with the smell of fresh bread.
キッチンは新鮮なパンの匂いで満たされていた。
B2 adverb /ˈsoʊlli/

solely

単独で
Meaning
only; not involving anyone or anything else
Example
He is solely responsible for the decision.
彼はその決定に完全に責任を持っています。
A1 adjective /bɪɡ/

big

大きい
Meaning
large in size, extent, or importance
Example
They moved into a big house with plenty of space.
彼らは広いスペースのある大きな家に引っ越しました。
B2 adjective /ˈfeɪtl/

fatal

致命的
Meaning
causing death; leading to disaster
Example
The accident proved fatal for the driver.
その事故は運転手にとって致命的だった。
C2 noun /ˈɔːtɑːrki/

autarchy

自給自足
Meaning
A system of self-sufficiency where a state or community is economically independent.
Example
The nation attempted autarchy to reduce reliance on imports.
その国は輸入依存を減らすために自給自足を試みました。
B1 verb /ˈhaɪˌlaɪt/

highlight

強調する
Meaning
to emphasize or make something stand out
Example
The teacher highlighted the most important points in the text.
先生はテキストで最も重要な点をハイライトしました。
C1 verb /ˈluːbrɪkeɪt/

lubricate

潤滑する
Meaning
to apply oil or grease to reduce friction between surfaces
Example
The mechanic lubricated the car engine parts.
整備士は車のエンジンパーツに潤滑油を塗布しました。
C2 adjective /ˈsɪbɪlaɪn/

sibylline

神託的
Meaning
Prophetic, mysterious, or cryptic in meaning.
Example
The old woman gave a sibylline warning about the future.
その老婦人は未来について神託的な警告をした。
C2 noun /pərˈdɪʃən/

perdition

幸福
Meaning
A state of eternal spiritual ruin, often referring to hell or damnation.
Example
The preacher warned that greed would lead to perdition.
彼女は賞を受け取ったとき、自分の幸福を隠すことができなかった。
C1 verb /məˈtɪərɪəlaɪz/

materialize

実現する
Meaning
To become real or actual; to appear suddenly or in a physical form.
Example
The opportunity he had been waiting for finally materialized.
彼が待っていたチャンスはついに実現しました。
C1 adverb /ɪnˈdɛfɪnətli/

indefinitely

無期限で
Meaning
for an unlimited or unspecified period of time
Example
The project has been postponed indefinitely.
プロジェクトは無期限で延期されました。
B2 noun /ˈfɪʃ.ɪŋ/

phishing

詐欺による情報盗取
Meaning
The fraudulent practice of sending emails purporting to be from reputable companies in order to induce individuals to reveal personal information.
Example
Phishing emails often trick people into revealing passwords.
フィッシングメールは、しばしば人々をだましてパスワードを明かさせます。
C1 noun ˈpɛd.ə.ɡɒ.dʒi

pedagogy

教育学
Meaning
The method and practice of teaching, especially as an academic subject or theoretical concept.
Example
Modern pedagogy focuses on student-centered learning.
現代の教育学は学生中心の学習に焦点を当てています。
C1 noun /ˈɡreɪdiənt/

gradient

傾斜
Meaning
A gradual slope, or the degree of inclination of a surface.
Example
The cyclist struggled up the steep gradient of the hill.
サイクリストは急な傾斜の坂を上るのに苦労していた。
C1 adjective /wɒn/

wan

青白い
Meaning
looking pale or sickly; lacking color or vitality
Example
After the long illness, his face looked wan and tired.
長い病気の後、彼の顔は青白くて疲れて見えた。
B2 noun ˈpærəˌlɛlz

parallels

類似点
Meaning
Similarities or comparisons between two different things or situations
Example
There are parallels between Japan's aging issues and Bangladesh's situation.
日本の高齢化問題とバングラデシュの状況にはパラレルが存在します。
C1 noun /ˌhɑːmənaɪˈzeɪʃən/

harmonization

調和、統一
Meaning
The process of making things compatible or consistent with one another.
Example
The harmonization of different policies ensures consistent results.
異なる方針の調和は一貫した結果を保証します。
C2 noun /ˈtuːb.roʊz/

Tube-rose

チューバローズ
Meaning
a night-blooming flower with an intensely sweet fragrance, native to Mexico
Example
The tuberose flowers filled the evening air with their heavenly scent.
チューバローズの花は夕方の空気に天国のような香りを満たしました。
B2 noun /præŋk/

prank

いたずら
Meaning
A trick that is intended to be funny but not harmful.
Example
They played a harmless prank on their friend during the party.
彼らはパーティーで友達と無害ないたずらをしました。
C1 adverb spɒnˈteɪnɪəsli

spontaneously

自発的に
Meaning
In a spontaneous way; naturally and without planning or external cause.
Example
Children learn spontaneously through peer interactions.
子供たちは仲間とのやり取りを通じて自然に学びます。
B2 adverb /prɪˈzjuːməbli/

presumably

おそらく
Meaning
used to convey that something is assumed to be true though not known for certain
Example
Presumably, he forgot to send the email.
おそらく、彼はメールを送るのを忘れた。
A1 pronoun /ˈɛvrɪθɪŋ/

everything

すべて
Meaning
all things; the whole lot
Example
He packed everything in his suitcase.
彼はすべてをスーツケースに詰め込んだ。
C2 adjective /ˌpɒliˈæn.ɪ.ɪʃ/

pollyannaish

過度に楽観的
Meaning
overly or blindly optimistic
Example
Her pollyannaish attitude ignored the obvious problems.
彼女の過度に楽観的な態度は明らかな問題を無視していた。
B1 adjective /ˈmæsɪv/

Massive

巨大な; 非常に大きい; サイズや量で巨大な
Meaning
extremely large; huge in size or amount
Example
The company made a massive profit this year.
その会社は今年、巨大な利益を上げました。
B2 adjective /ˌprɒb.ləˈmæt.ɪk/

Problematic

問題のある; 問題を引き起こす
Meaning
causing problems; troublesome; difficult to deal with
Example
The new policy changes are problematic and need to be reviewed.
新しい政策変更は問題があり、再評価する必要があります。
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。
C2 noun /ˌpɜː.spɪˈkæs.ɪ.ti/

perspicacity

鋭い洞察力
Meaning
Sharp insight, keen understanding and discernment.
Example
Her perspicacity in business decisions led to success.
彼女のビジネスの意思決定における洞察力は成功をもたらした。
C1 adjective /ˌɪməˈtɪəriəl/

immaterial

無関係
Meaning
Not important or relevant; lacking physical substance.
Example
The judge ruled that the argument was immaterial to the case.
裁判官はその議論が事件に関係ないと判断しました。
C2 adjective /ˈfer.əs/

ferrous

鉄を含む
Meaning
containing or consisting of iron
Example
Ferrous metals are commonly used in construction.
鉄を含む金属は建設でよく使用されます。
B1 noun /əˈnaʊnsmənt/

announcement

発表
Meaning
a public or formal statement giving information
Example
The principal made an important announcement about the new schedule.
校長は新しいスケジュールについて重要な発表をしました。
C1 adjective /ˈfrɪvələs/

frivolous

取るに足らない
Meaning
Not having any serious purpose or value; silly or unimportant.
Example
She dismissed the frivolous complaint quickly.
彼女は取るに足らない苦情をすぐに却下しました。
B2 adverb /kənˈsɪdərəbli/

Considerably

かなり; 相当
Meaning
to a notably large degree; significantly; substantially
Example
The price has increased considerably over the past year.
昨年、価格はかなり上昇しました。
B1 adjective /ʌnˈʃʊr/

unsure

不確かな
Meaning
not certain or confident; feeling doubt
Example
She felt unsure about the decision.
彼女はその決定について不確かだった。
C1 verb /ˈɡræpəl/

grapple

格闘する, 取り組む
Meaning
to struggle or wrestle with something, often a problem or opponent
Example
The company is grappling with financial difficulties.
その会社は財務問題に取り組んでいます。
C1 noun /ˈfæk.ʃən/

Faction

派閥
Meaning
a small organized dissenting group within a larger one
Example
Different factions within the party disagreed about the new policy.
党内の異なる派閥は新しい政策に対して意見が一致しませんでした。
B2 noun /əˈplɔːz/

applause

拍手
Meaning
the sound of people clapping their hands to show approval or enjoyment
Example
The actor received loud applause after his performance.
俳優は彼のパフォーマンス後に大きな拍手を受けました。
B2 noun, verb /ˈriːteɪl/

retail

小売
Meaning
the sale of goods to the public in small quantities for use or consumption rather than for resale
Example
The company specializes in the retail of clothing and accessories.
この会社は衣類とアクセサリーの小売を専門としています。
B2 adverb /əˈten.tɪv.li/

Attentively

注意深く
Meaning
with careful attention; in a focused manner
Example
She listened attentively to her teacher's instructions.
彼女は先生の指示を注意深く聞いた。
B2 adjective ɪkˈsɛsɪv

excessive

過度の
Meaning
More than is necessary, normal, or desirable; immoderate.
Example
Excessive population growth leads to resource depletion.
過度の人口増加は資源の枯渇を引き起こします。
B2 noun /pɪt/

pit

穴
Meaning
a large hole in the ground or a hollow area
Example
The workers dug a deep pit to build the foundation.
労働者たちは基礎を作るために深い穴を掘った。
B1 verb /loʊd/

load

積む
Meaning
to put goods or cargo onto a vehicle; to fill something with a heavy quantity
Example
Workers load the truck with heavy boxes.
作業員は重い箱でトラックを積み込みます。
B2 noun /ˈvæn.ɪ.ti/

Vanity

虚栄心
Meaning
excessive pride in one's appearance or achievements; the quality of being worthless or pointless
Example
Her vanity made her spend hours looking at herself in the mirror.
彼女の虚栄心は、鏡の前で何時間も自分を見つめさせた。
C1 noun /ˌɪnflɛksɪˈbɪlɪti/

inflexibility

柔軟性の欠如
Meaning
the quality of being rigid or unwilling to change; lack of adaptability
Example
The inflexibility of the rules caused unnecessary delays.
規則の柔軟性の欠如が不要な遅れを引き起こした。
C1 noun /ˈspɪnstər/

spinster

未婚女性
Meaning
An unmarried woman, often one who is older and considered unlikely to marry
Example
The novel featured a kind-hearted spinster who cared for the village children.
その小説には、村の子供たちの世話をしていた心優しい未婚女性が登場した。
C2 adjective /pɔːrˈtɛntəs/

portentous

前兆的な、重大な
Meaning
Giving a sign or warning that something, often bad or serious, is going to happen; or overly solemn and pompous.
Example
His portentous tone made everyone nervous about the news.
彼の前兆的な口調は、ニュースについて皆を不安にさせた。
B1 noun /mʌɡ/

Mug

マグカップ
Meaning
a large cup, typically cylindrical and having a handle and used without a saucer
Example
She drank her morning coffee from a ceramic mug.
彼女はセラミックマグから朝のコーヒーを飲んだ。
C1 noun /ˈdʒɔːn.dɪs/

jaundice

黄疸
Meaning
A medical condition in which the skin and eyes become yellow due to liver problems.
Example
The doctor diagnosed the baby with jaundice.
医師は赤ちゃんに黄疸と診断しました。
C1 noun /mjuːˈteɪʃn/

mutation

突然変異、遺伝的変化
Meaning
A change in form, structure, or nature, especially in genetics.
Example
Scientists discovered a genetic mutation that caused the disorder.
科学者たちは、その障害を引き起こした遺伝的な突然変異を発見しました。
C2 noun /əˈkjuːtnəs/

acuteness

鋭敏さ；深刻さ
Meaning
sharpness of mind or senses; severity or intensity of a condition
Example
Her acuteness allowed her to notice details others missed.
彼女の鋭敏さは他の人が見逃した細部に気づかせた。
B1 noun /ˈpoʊni/

Pony

ポニー
Meaning
a small horse, typically under 14.2 hands high
Example
The children enjoyed riding the gentle pony at the farm.
子供たちは農場で優しいポニーに乗ることを楽しみました。
A2 adverb /ˈsʌm.deɪ/

someday

いつか
Meaning
at some time in the future
Example
Someday, I want to travel the world.
いつか、私は世界中を旅したい。
A1 noun /ˈbʌt.ər/

Butter

バター
Meaning
a pale yellow edible fatty substance made by churning cream
Example
He spread butter on his toast for breakfast.
彼は朝食にトーストにバターを塗った。
C2 verb /ˈmæsəˌreɪt/

macerate

浸す
Meaning
to soften or break up something, especially food, by soaking in liquid
Example
The chef macerated the fruit in wine before serving.
シェフは果物をワインにマセレートしてから提供しました。
C2 verb /ˌɪntərˈlɒk/

interlock

かみあう
Meaning
to fit or connect together securely so that two or more things are joined
Example
The gears interlock to ensure smooth movement of the machine.
ギアは機械のスムーズな動作を確保するために噛み合います。
C2 noun /ɒmˈnɪʃəns/

omniscience

全知
Meaning
the state of knowing everything
Example
The novel's narrator has an air of omniscience, revealing every character's thoughts.
小説の語り手は全知の空気をまとい、すべてのキャラクターの考えを明らかにしている。
C1 verb /sɪft/

sift

ふるいにかける / 注意深く調べる
Meaning
to separate or sort through carefully, often using a sieve or by examining closely
Example
She sifted the flour before adding it to the cake mixture.
ケーキのミックスに加える前に、小麦粉をふるいにかけました。
C2 noun /kɪˈrɒpədɪst/

chiropodist

足病医
Meaning
A healthcare professional who diagnoses and treats foot problems.
Example
The chiropodist treated her painful corns and calluses.
足病医は彼女の痛いタコと鶏眼を治療した。
C2 adjective /ˈlæk.ti.əl/

lacteal

ミルクに関連するまたはミルクのような
Meaning
Relating to or resembling milk; conveying chyle or milky fluid.
Example
The lacteal vessels in the small intestine absorb dietary fats.
小腸の乳腺血管が食事の脂肪を吸収します。
B1 adverb /ˈfɜːrstli/

firstly

まず
Meaning
used to introduce the first point or reason in a discussion or argument
Example
Firstly, we need to address the budget issue before proceeding.
まず、予算の問題に対処する必要があります。
C1 adjective /ˈɡæsiəs/

gaseous

気体の
Meaning
Relating to or having the form of gas.
Example
Carbon dioxide is a gaseous substance.
二酸化炭素は気体の物質です。
C1 adjective /rɪˈflek.sɪv/

Reflexive

反射的; 内省的
Meaning
directed back on itself; showing deep thought about oneself
Example
She became more reflexive about her behavior after the feedback.
フィードバックの後、彼女は自分の行動についてもっと反省的になりました。
B2 adjective /hɪˈspænɪk/

hispanic

ヒスパニック / スペイン語を話す
Meaning
relating to Spain or Spanish-speaking countries, especially Latin America.
Example
She studies Hispanic culture and language.
彼女はヒスパニック文化と言語を学んでいます。
C1 noun /əˈsæsɪn/

Assassin

暗殺者
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
大統領はセキュリティガードによって潜在的なアサシンから守られていた。
B1 noun /ˈhændˌraɪ.tɪŋ/

handwriting

手書き
Meaning
the style or manner of writing by hand.
Example
Her handwriting is very neat and easy to read.
彼女の手書きはとてもきれいで読みやすいです。
C2 noun /ˈlaɪtoʊtiːz/

litotes

緩和表現
Meaning
a figure of speech in which an affirmative is expressed by the negative of its contrary
Example
Saying 'not bad' as a compliment is an example of litotes.
'悪くない'と言うことは、緩和表現の一例です。
B2 adjective /ˈsɒl.ɪ.ter.i/

Solitary

孤独; 孤立; 一人
Meaning
alone; without companions; single; isolated
Example
He lived a solitary life in the mountains.
彼は山中で孤独な生活を送っていました。
C1 adjective /ˈtɪklɪʃ/

ticklish

Meaning
easily made to laugh by being touched lightly; easily upset or sensitive
Example
She is very ticklish and bursts into laughter when touched on her feet.
B1 noun /twiːt/

Tweet

さえずり
Meaning
a short high-pitched sound made by a small bird; a post on Twitter
Example
I heard the sweet tweet of a sparrow this morning.
今朝、スズメの甘いツイートを聞きました。
C1 adjective /vɜːrˈboʊs/

verbose

冗長
Meaning
Using or expressed in more words than are needed; wordy.
Example
His verbose explanation confused the audience instead of clarifying the issue.
彼の冗長な説明は、問題を明確にするどころか、聴衆を混乱させました。
C1 noun/verb /tæk/

tack

Meaning
a small sharp nail; or to change direction in sailing or approach something differently
Example
She used a tack to pin the paper on the wall.
B1 noun /ɪˈkɒnəmɪst/

economist

経済学者
Meaning
A person who studies or is an expert in economics.
Example
The economist predicted a rise in inflation.
経済学者はインフレの上昇を予測しました。
C1 noun /ˈɪnlɛt/

inlet

入り江
Meaning
A small arm of the sea, a lake, or a river; an opening or passage for entry.
Example
The boat entered a narrow inlet along the coast.
船は海岸沿いの狭い入り江に入った。
C2 noun /ˈfɔːrˌseɪl/

foresail

フォアセイル
Meaning
The principal sail set on the foremast of a sailing vessel.
Example
The crew adjusted the foresail to catch the wind.
乗組員は風を捉えるためにフォアセイルを調整しました。