C1 verb /səbˈvɜːrt/

subvert

Meaning

to undermine or overthrow an established system, authority, or institution

Example

The rebels tried to subvert the government.

C1 verb /siːp/

seep

しみ出す

Meaning

to flow or leak slowly through small openings or pores

Example

Water began to seep through the cracks in the wall.

水が壁のひび割れからしみ出し始めました。

C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

シミュレートされた

Meaning

Artificially created to look real but not actually real.

Example

The pilot trained in a simulated flight environment.

パイロットはシミュレートされた飛行環境で訓練しました。

C1 adjective /ˈsaɪz.mɪk/

seismic

地震の

Meaning

Relating to earthquakes or vibrations of the earth and its crust.

Example

The region is known for its seismic activity.

その地域は地震活動で知られています。

C1 noun, adjective /ˈsɒlvənt/

solvent

溶剤, 債務を支払う能力

Meaning

a liquid that dissolves other substances; also means able to pay debts

Example

Acetone is a common solvent used in laboratories.

アセトンは実験室でよく使われる溶剤です。

C1 adjective /ˈstoʊɪk/

stoic

冷静な, 無感情な

Meaning

Showing little or no emotion, even in difficult situations.

Example

She remained stoic during the crisis, never showing fear or panic.

彼女は危機の間、冷静で恐怖やパニックを示さなかった。

C1 noun /sərˈveɪər/

surveyor

測量士

Meaning

A person who measures and maps land, buildings, or other features.

Example

The surveyor measured the land for construction.

測量士は建設のために土地を測定した。

C1 noun /ˈsɜːrtʃɑːrdʒ/

surcharge

追加料金

Meaning

an additional charge or payment added to the usual cost

Example

The airline ticket had a fuel surcharge added to it.

航空券に燃料サーチャージが追加されていました。

C1 adjective /ˈsiːzənəbəl/

Seasonable

季節に適した

Meaning

occurring at the right time; appropriate for the season; timely

Example

The seasonable rain helped the farmers with their crops.

季節の雨が農家の作物を助けました。

C1 adjective /ˈseɪ.li.ənt/

salient

重要な、顕著な、または目立つ

Meaning

Most important, prominent, or noticeable

Example

The report highlighted the salient points of the discussion.

レポートは議論の重要な点を強調しました。

C1 adjective /ˈseɪlaɪn/

Saline

塩水の; 塩分のある

Meaning

containing salt; salty; relating to salt water

Example

The saline solution is used for medical treatments.

塩水溶液は医療処置に使用されます。

C1 noun /slæɡ/

slag

鉱滓

Meaning

Stony waste matter separated from metals during the smelting process.

Example

The factory dumped the slag near the river.

工場は川の近くに鉱滓を捨てました。

C1 verb /ˈskruː.tɪ.naɪz/

scrutinize

慎重に調べる

Meaning

Examine or inspect closely and thoroughly.

Example

The scientist scrutinized the data before publishing his findings.

科学者は自分の発見を公開する前にデータを慎重に調べました。

C1 noun /spɛk/

speck

しみ

Meaning

A very small spot, mark, or particle.

Example

There was a tiny speck of dust on the glass table.

ガラスのテーブルに小さなほこりのしみがあった。

C1 verb /ˈslækən/

slacken

緩める

Meaning

to make or become less tight, less active, or slower

Example

The driver slackened his speed as he approached the village.

運転手は村に近づくにつれて速度を緩めた。

C1 noun /ˈsəʊdiəm/

sodium

ナトリウム

Meaning

a soft, silver-white chemical element that is highly reactive and found in salt.

Example

Sodium is an essential element for maintaining fluid balance in the body.

ナトリウムは体内の液体バランスを維持するために不可欠な元素です。

C1 adjective /seɪdʒ/

Sage

賢明な; 判断力のある; 経験豊かな

Meaning

wise; showing wisdom from experience; prudent; having good judgment

Example

The sage advice from the elder helped solve the problem.

長老の賢明な助言が問題を解決するのに役立った。

C1 adjective /ˈswoʊlən/

swollen

腫れた

Meaning

Enlarged or puffed up, usually due to injury, inflammation, or fluid accumulation

Example

Her ankle was swollen after she twisted it during the hike.

ハイキング中に足首をひねった後、足首が腫れていました。

C1 adjective /ˈsʌl.ki/

Sulky

不機嫌で無口; 気分屋

Meaning

bad-tempered and sullen; moody

Example

The child became sulky when he couldn't get his favorite toy.

その子供はお気に入りのおもちゃが手に入らなかったとき、不機嫌になった。

C1 noun/verb /skɜːrdʒ/

scourge

Meaning

A source of great pain or punishment; to whip or inflict suffering on someone.

Example

Disease and poverty remain a scourge in many regions.

C1 adjective /ˈspjʊəriəs/

spurious

偽の / 虚偽の

Meaning

Not genuine, authentic, or true; false or fake.

Example

The report was based on spurious claims.

その報告書は偽の主張に基づいていた。

C1 verb /ˈskwɒndər/

squander

浪費する

Meaning

to waste money, time, or opportunities in a careless way

Example

He squandered his inheritance on gambling.

彼はギャンブルに遺産を浪費した。

C1 verb /ˌsuːpərɪmˈpoʊz/

superimpose

重ね合わせる

Meaning

to place one thing on top of another so that both can be seen

Example

The editor superimposed text over the image.

編集者は画像にテキストを重ね合わせました。

C1 noun /straɪf/

strife

争い、闘争

Meaning

angry or violent conflict; struggle or discord

Example

The region has been torn apart by political strife.

その地域は政治的な争いで引き裂かれました。

C1 noun /spæt/

spat

小さな口論

Meaning

a short, petty quarrel or argument

Example

They had a brief spat about who should do the dishes.

誰が皿を洗うべきかについて小さな口論がありました。

C1 adjective /səbˈdʒɛktɪv/

subjective

主観的

Meaning

based on personal feelings, tastes, or opinions rather than facts

Example

Beauty is often considered a subjective concept.

美しさはしばしば主観的な概念と見なされます。

C1 noun /ʃeɪl/

shale

頁岩

Meaning

a fine-grained sedimentary rock that can be split into thin layers

Example

The region is rich in shale and natural gas deposits.

その地域は頁岩と天然ガスの埋蔵量が豊富です。

C1 noun /ˈslændər/

Slander

中傷

Meaning

the action of making false spoken statements damaging to someone's reputation

Example

The politician sued the newspaper for slander.

政治家は中傷で新聞を訴えた。

C1 verb /ˈsɪnɚdʒaɪzd/

synergized

シナジー効果が得られるようにする, 力を合わせる, 協力する

Meaning

Combine in such a way that the total effect is greater than the sum of the individual effects.

Example

The teams were synergized to maximize productivity.

チームは生産性を最大化するために協力しました。

C1 noun /ˈsɑːɡə/

saga

長い物語

Meaning

A long story of heroic achievement, or a long, complex series of events.

Example

The company's rise and fall became a corporate saga.

会社の興隆と衰退は企業のサガとなった。

C1 noun /ˈsɔːjər/

Sawyer

材木職人

Meaning

a person who saws wood, especially as an occupation

Example

The skilled sawyer cut the logs into planks.

熟練した材木職人は丸太を板に切りました。

C1 noun /ˈsʌn.stroʊk/

Sunstroke

熱中症

Meaning

a serious condition caused by overheating from prolonged exposure to high temperatures

Example

The worker suffered from sunstroke after working outside all day.

その労働者は一日中外で働いた後、日射病にかかりました。

C1 adjective /ˈstɛr.aɪl/

sterile

無菌

Meaning

Free from bacteria or other living microorganisms; incapable of producing offspring.

Example

The surgeon worked in a sterile environment to avoid infection.

外科医は感染を防ぐために無菌環境で働いた。

C1 noun /ˈsʌtlti/

subtlety

微妙

Meaning

The quality or state of being subtle.

Example

She understood the subtlety of the situation.

彼女は状況の微妙さを理解しました。

C1 adjective /səˈnɔːrəs/

sonorous

深い音

Meaning

Deep, full, and rich in sound.

Example

The actor's sonorous voice filled the entire theater.

俳優のソノラスな声が劇場全体に響き渡った。

C1 noun /səˈlɪn.ə.t̬i/

salinity

塩分, 塩濃度

Meaning

The salt content of soil or water, typically measured as a concentration.

Example

The salinity of the ocean varies depending on depth and location.

海洋の塩分は深さと場所によって異なります。

C1 noun speɪst ˌrep.ɪˈtɪʃ.ən

spaced repetition

間隔反復

Meaning

A learning technique that involves reviewing information at increasing intervals to improve long-term retention.

Example

Spaced repetition helps in long-term memory retention.

スペースド・リピティションは長期記憶を保持するのに役立ちます。

C1 adjective /ˌsækrəˈlɪdʒəs/

sacrilegious

冒涜的

Meaning

Showing disrespect or irreverence toward something sacred.

Example

The painting was criticized as being sacrilegious.

その絵画は冒涜的だと批判されました。

C1 verb /ˈsælvɪdʒ/

salvage

救助

Meaning

To save something from loss, damage, or destruction.

Example

They managed to salvage some goods from the fire.

彼らは火事からいくつかの物を救出することに成功した。

C1 adjective /ˈswɛltərɪŋ/

sweltering

うだるような暑さ

Meaning

uncomfortably hot

Example

The sweltering heat made it hard to work.

うだるような暑さで仕事が難しくなった。

C1 noun, adjective, verb /ʃæm/

sham

偽り

Meaning

something that is not what it appears to be; a false or fake thing; to pretend

Example

The deal turned out to be a sham.

その取引は偽りであることが判明しました。

C1 verb sɪˈkwɛstər

sequester

隔離する, 隠す

Meaning

To isolate or hide away.

Example

The carbon captured by trees can be sequestered for years.

木々によって捕えられた炭素は、何年も隔離されることがあります。

C1 noun /swiːt.laɪm/

Sweetlime

スイートライム

Meaning

a citrus fruit that is sweeter and less acidic than regular lime

Example

The sweetlime juice was refreshing on a hot day.

スイートライムジュースは暑い日にさわやかでした。

C1 adjective /ˌsɛlf ˈraɪtʃəs/

self-righteous

自己満足

Meaning

Having or showing an attitude of moral superiority; believing one’s own beliefs are the only right ones.

Example

His self-righteous comments made everyone uncomfortable.

彼の自己満足的なコメントは、みんなを不快にさせました。

C1 noun /ˈspaɪər/

spire

尖塔

Meaning

a tall, pointed structure on top of a building, especially a church

Example

The church spire could be seen from miles away.

教会の尖塔は遠くから見ることができました。

C1 noun /ˈstəʊ.ɪ.sɪ.zəm/

stoicism

ストイック主義

Meaning

The endurance of pain or hardship without the display of feelings and without complaint.

Example

His stoicism during hardship was admirable.

困難な時に彼のストイック主義は賞賛に値した。

C1 verb /ˈskævɪndʒ/

scavenge

ゴミの中から探す

Meaning

to search through waste or discarded material to find useful items

Example

The children scavenged for food in the garbage dump.

子供たちはゴミ捨て場で食べ物を探していました。

C1 verb/noun /ˈswæɡ.ər/

swagger

自信過剰

Meaning

To walk or behave in a very confident and arrogant way.

Example

He swaggered into the room as if he owned the place.

彼はまるでその場所のオーナーであるかのように部屋に入ってきました。

C1 verb /ˈseɪ.vər/

savor

味わう

Meaning

To enjoy something completely, especially by dwelling on it.

Example

He savored every bite of the delicious cake.

彼はおいしいケーキの一口一口を味わった。

C1 noun sælˈveɪʃən

salvation

救済

Meaning

Deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.

Example

The story revolves around the theme of salvation.

物語は救いのテーマを中心に展開します。

C1 verb /slaʊtʃ/

slouch

だらしなく座る

Meaning

To stand, sit, or move in a lazy or awkward way.

Example

He slouched in the chair, looking tired.

彼は椅子にだらりと座り、疲れた様子だった。

C1 adjective /ˈstɪndʒi/

stingy

けち

Meaning

unwilling to spend or give; miserly

Example

He is too stingy to buy a gift for his friend.

彼は友達へのプレゼントを買うにはあまりにけちだ。

C1 noun /ˈskævɪndʒər/

scavenger

死肉食者 / ゴミ収集者

Meaning

an animal or person that feeds on dead or discarded material

Example

Vultures are natural scavengers that clean up the environment.

ハゲワシは自然のスカベンジャーで、環境をきれいにします。

C1 adjective /ˈspʌndʒi/

Spongy

スポンジ状

Meaning

soft and full of holes like a sponge; porous

Example

The cake had a light and spongy texture.

ケーキは軽くてスポンジ状の質感がありました。

C1 adjective /ˈsɛnʃənt/

sentient

感覚的

Meaning

Able to perceive or feel things.

Example

Humans are sentient beings capable of reasoning.

人間は推論する能力を持った感覚的存在です。

C1 /splɪnt/

splint

添木

Meaning

A rigid device used to support and immobilize a broken or injured body part.

Example

The doctor applied a splint to stabilize the patient's broken arm.

医者は患者の折れた腕を安定させるために添木を使いました。

C1 noun /stɪnt/

stint

短期の仕事

Meaning

a period of time spent doing a particular job or activity

Example

She did a short stint as a teacher before moving abroad.

彼女は海外に移住する前に短期間の教師として働きました。

C1 adjective /stjuːˈpɛndəs/

stupendous

素晴らしい

Meaning

extremely impressive; amazing in size, degree, or excellence

Example

The magician’s performance was simply stupendous.

マジシャンのパフォーマンスはまさに素晴らしいものでした。

C1 noun /ˈswiːt.miːt/

Sweetmeat

お菓子

Meaning

a small piece of confectionery or candy; a sweet delicacy

Example

The children enjoyed the traditional sweetmeats during the festival.

子供たちは祭りの間に伝統的なスイートミートを楽しみました。

C1 noun/verb /ˈsuː.tʃər/

suture

縫合

Meaning

A stitch or row of stitches holding together the edges of a wound or surgical incision.

Example

The doctor used a suture to close the wound.

医者は傷を閉じるために縫合糸を使いました。

C1 adjective /ˌsuːɪˈsaɪdəl/

Suicidal

自殺的

Meaning

relating to or having thoughts of killing oneself; extremely dangerous or harmful

Example

The reckless driving was suicidal behavior.

無謀な運転は自殺的な行動でした。

C1 noun /skɪt/

skit

寸劇

Meaning

a short, humorous performance or piece of writing

Example

The students performed a funny skit at the event.

学生たちはイベントで面白い寸劇を演じました。

C1 noun /ˈspɛkjʊˌleɪtər/

speculator

投機家

Meaning

A person who forms theories without evidence, or invests in assets hoping for profit.

Example

The real estate speculator bought land hoping its value would rise.

不動産投機家は、土地の価値が上がることを期待して土地を購入しました。

C1 noun /ˌsæbəˈtɜːr/

saboteur

破壊工作員

Meaning

A person who engages in sabotage.

Example

The saboteur was arrested before he could plant the bomb.

破壊工作員は爆弾を設置する前に逮捕されました。

C1 adjective /səbˈvɜːrsɪv/

subversive

破壊的

Meaning

seeking or intended to undermine or overthrow an established system or authority

Example

The group was banned for its subversive activities.

そのグループは破壊的な活動のために禁止された。

C1 adjective /səˈriːn/

serene

静かで平和な

Meaning

Calm, peaceful, and untroubled; tranquil.

Example

The lake had a serene and peaceful atmosphere.

湖は静かで平和な雰囲気を持っていました。

C1 adjective /ˌsɛlf ɪˈfeɪsɪŋ/

self-effacing

控えめな

Meaning

not drawing attention to oneself; modest

Example

Despite his success, he remained self-effacing and humble.

成功にもかかわらず、彼は控えめで謙虚なままでした。

C1 noun ˌsætʃəˈreɪʃən

saturation

飽和

Meaning

The state of being saturated; the degree or extent to which something is dissolved or absorbed

Example

The saturation of the market with similar products reduced sales.

市場に同様の商品が溢れすぎて、販売が減少しました。

C1 adjective /ˈsɛn.sər.i/

sensory

感覚的

Meaning

Related to the five human senses (sight, hearing, taste, touch, smell).

Example

Sensory feedback enhances the VR experience.

感覚的フィードバックはVR体験を強化します。

C1 noun /səˈnɑːtə/

sonata

音楽作品 (ソナタ)

Meaning

A musical composition for one or more instruments, typically in several movements.

Example

She performed a beautiful Beethoven sonata on the piano.

彼女はピアノで美しいベートーヴェンのソナタを演奏しました。

C1 adjective /ˈstraɪ.dənt/

strident

耳障りな, うるさい

Meaning

loud and harsh; presenting a point of view in a forceful way

Example

His strident voice made the debate uncomfortable.

彼の耳障りな声は議論を不快にした。

C1 noun /ˈsɛmbləns/

Semblance

外見; 偽りの形

Meaning

the outward appearance or apparent form of something, especially when the reality is different

Example

There was only a semblance of order in the chaotic office.

混沌としたオフィスには、秩序の外見だけがあった

C1 adjective /swɑːv/

suave

魅力的で洗練された

Meaning

charming, confident, and elegant, often in a smooth or polished way

Example

He was a suave gentleman who impressed everyone at the party.

彼はパーティーで全員に感銘を与えた洗練された紳士だった。

C1 noun /sleɪ/

sleigh

そり

Meaning

A vehicle pulled by horses or reindeer over snow or ice.

Example

Children were excited to ride in the sleigh through the snowy village.

子供たちは雪に覆われた村でそりに乗ることに興奮していました。

C1 adjective /stiːpt/

steeped

浸透した

Meaning

Completely surrounded by or filled with a particular quality, influence, or experience.

Example

The town is steeped in history and tradition.

町は歴史と伝統に浸透している。

C1 noun/adjective /ˈstɜː.lɪŋ/

sterling

英国通貨 / 優れた

Meaning

British money, especially pounds; of excellent quality.

Example

She was praised for her sterling work on the project.

プロジェクトでの優れた仕事が称賛されました。

C1 verb /ˈskaʊər/

scour

磨く / 徹底的に探す

Meaning

to clean or brighten the surface of something by scrubbing; to search thoroughly

Example

She scoured the kitchen until it shone.

彼女はキッチンを磨いて、ピカピカにしました。

C1 noun ˈsʌs.tɪ.nəns

Sustenance

生存のための食物または支援

Meaning

Food or support necessary for sustaining life

Example

Water is essential for human sustenance.

水は人間の生存に欠かせない。

C1 verb /ˈstriːmlaɪnɪŋ/

streamlining

簡素化

Meaning

The process of making an organization or system more efficient by simplifying or eliminating unnecessary steps

Example

Streamlining processes can significantly reduce operational costs.

プロセスの簡素化は、運用コストを大幅に削減することができます。

C1 noun /ˌstætɪˈstɪʃən/

statistician

統計学者

Meaning

A person who specializes in collecting, analyzing, and interpreting numerical data.

Example

The statistician presented the survey results with great clarity.

統計学者は調査結果を明確に示しました。

C1 noun /ˈsɜːrəɡət/

surrogate

代理人

Meaning

A substitute, especially a person deputizing for another in a specific role or office.

Example

The surrogate mother gave birth to the child after carrying it for nine months.

代理母は九か月間子どもを妊娠してから子どもを出産した。

C1 noun /ʃoʊl/

shoal

魚の群れ

Meaning

a large group of fish swimming together; a shallow place in water

Example

We saw a shoal of fish near the coast.

私たちは海岸近くで魚の群れを見ました。

C1 noun/verb /sleɪt/

slate

スレート / 予定する

Meaning

a fine-grained rock used for roofing or writing; to schedule or designate for a task

Example

The meeting is slated for next Monday.

ミーティングは次の月曜日に予定されています。

C1 noun /ˈsɪməli/

simile

直喩

Meaning

A figure of speech involving the comparison of one thing with another using 'like' or 'as'.

Example

She used a simile to describe her eyes as bright as stars.

彼女は自分の目を星のように明るいと表現するために直喩を使いました。

C1 noun /sɪˈkluːʒən/

seclusion

隠遁

Meaning

The state of being private, away from other people.

Example

She spent the weekend in complete seclusion in her cabin.

彼女はキャビンで完全に隠遁した週末を過ごしました。

C1 verb /siːð/

seethe

怒りで煮えたぎる

Meaning

To be filled with intense but unexpressed anger or agitation.

Example

She was seething with anger after the unfair decision.

彼女は不公平な決定の後、怒りで煮えたぎっていました。

C1 noun /səˈprɑːnoʊ/

soprano

女性または子供の最も高い歌声

Meaning

the highest female or boy’s singing voice

Example

She sang beautifully in the soprano range during the concert.

彼女はコンサートでソプラノの範囲で美しく歌いました。

C1 noun /ˈʃæmbəlz/

shambles

大混乱

Meaning

a state of complete disorder or ruin

Example

After the storm, the whole town was in shambles.

嵐の後、町全体が大混乱に陥った。

C1 adjective /ˈstɔːlwərt/

stalwart

忠実, 頑強

Meaning

Loyal, reliable, and hardworking; strongly built or sturdy.

Example

She has always been a stalwart supporter of the community.

彼女は常にコミュニティの忠実な支持者でした。

C1 verb /smɪr/

smear

塗る / 中傷する

Meaning

to spread or apply a substance messily; to damage someone's reputation with false or unfair words

Example

The child smeared paint across the wall.

子供が壁にペンキを塗った。

C1 adjective /smʌɡ/

smug

自惚れた

Meaning

having or showing an excessive pride in oneself or one's achievements

Example

He wore a smug smile after winning the debate.

彼は議論に勝った後、自惚れた笑顔を見せた。

C1 noun /səˈvænə/

savanna

サバンナ（散在する木々がある草原）

Meaning

a grassy plain with scattered trees, typical of tropical and subtropical regions

Example

Giraffes browsed on acacia trees across the wide savanna.

キリンは広いサバンナでアカシアの木の葉を食べていました。

C1 verb /ˈstoʊnwɔːl/

stonewall

妨害する

Meaning

To delay or block progress by refusing to cooperate or answer

Example

The witness tried to stonewall during the investigation.

証人は調査中にストーンウォールしようとしました。

C1 noun /ˈspɛktər/

specter

幽霊

Meaning

A ghost or spirit; something that causes fear or dread.

Example

The specter of war still haunts the region.

戦争の幽霊は今でもその地域をおびやかしています。

C1 adjective /ˈskɛtʃi/

sketchy

不完全

Meaning

not thorough or detailed; suspicious or unsafe

Example

The details of the project were still sketchy.

プロジェクトの詳細はまだ不完全でした。

C1 noun /ˈsaɪd.laɪn dɪˈskʌʃənz/

sideline discussions

サイドラインの議論

Meaning

Informal or secondary conversations that occur outside the main agenda of a formal meeting.

Example

Sideline discussions often lead to agreements.

サイドラインの議論はしばしば合意に至ります。

C1 noun səˈfɪʃənsi

sufficiency

十分性

Meaning

The condition of being adequate or enough; adequacy.

Example

The sufficiency of food supply is critical for survival.

食料供給の十分性は生存にとって重要です。

C1 verb /struː/

strew

まき散らす

Meaning

to scatter or spread things untidily over a surface or area

Example

Clothes were strewn across the floor.

服が床に散らばっていた。

C1 noun /ˈseɪɑːns/

seance

霊的なセッション

Meaning

A meeting where people attempt to communicate with the spirits of the dead.

Example

They held a seance to contact their late grandmother.

彼らは亡くなった祖母と連絡を取るために霊的なセッションを開いた。

C1 noun /ˈsmætərɪŋ/

smattering

ちょっとした知識

Meaning

A small amount or superficial knowledge of something.

Example

He has a smattering of Spanish.

彼はスペイン語についてちょっとした知識を持っている。

C1 adjective /ˈspeɪʃəl/

spatial

空間の

Meaning

relating to space or the position, area, and size of things

Example

The scientist studied the spatial arrangement of stars.

科学者は星の空間配置を研究しました。

C1 noun /ˌsəʊʃəˈbɪləti/

sociability

社交性

Meaning

The quality or state of being sociable; friendliness.

Example

Her sociability made her popular in the office.

彼女の社交性はオフィスで人気を集めました。

C1 adjective, verb /sɪˈdeɪt/

sedate

鎮静する

Meaning

calm, quiet, and composed; or to administer a drug to make someone calm or sleep

Example

The nurse sedated the patient before the operation.

看護師は手術の前に患者を鎮静しました。

C1 noun səˈlɪnɪti ɪnˈtruːʒən

salinity intrusion

塩分侵入

Meaning

The movement of salt water into freshwater areas, typically affecting coastal regions.

Example

Salinity intrusion affects coastal regions.

塩分侵入は沿岸地域に影響を与える。

C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

衛生管理

Meaning

The process of cleaning and disinfecting to eliminate germs and bacteria.

Example

Regular sanitization keeps appliances germ-free.

定期的な衛生管理により、機器が無菌状態に保たれます。

C1 noun ˈsɪnədʒi

synergy

相乗効果, 協力

Meaning

The interaction or cooperation of two or more organizations, substances, or other agents to produce a combined effect greater than the sum of their separate effects.

Example

The synergy between the two companies led to a successful partnership.

二つの会社間の相乗効果により、成功したパートナーシップが生まれました。

C1 verb /ˈstɪntɪŋ/

stinting

けちけちと与える

Meaning

to supply sparingly or with restrictions

Example

He never stinting his efforts to help the poor.

彼は貧しい人々を助けるために決して手を抜きません。

C1 noun /ˌsɛlfsəˈfɪʃənsi/

Self-sufficiency

自給自足

Meaning

the ability to supply one's own needs without external assistance; independence

Example

The farm achieved complete self-sufficiency in food production.

その農場は食品生産において完全な自給自足を達成しました。

C1 noun /stɑːr fruːts/

Star Fruits

スターフルーツ

Meaning

yellow tropical fruits that form a star shape when sliced crosswise; tangy and crisp taste

Example

When you slice star fruits, they look like beautiful yellow stars on your plate.

スターフルーツを切ると、プレートの上に美しい黄色い星のように見えます。

C1 noun, verb /ˈskʌf.əl/

scuffle

乱闘

Meaning

a short, confused fight or struggle; to engage in such a fight

Example

Two players scuffled on the field after the foul.

ファウルの後、二人の選手がフィールドで殴り合った。

C1 adjective /ˌsæŋktɪˈmoʊniəs/

sanctimonious

偽善的な敬虔

Meaning

Making a show of being morally superior to others; hypocritically pious.

Example

He gave a sanctimonious speech about honesty while he himself was corrupt.

彼は自分が腐敗していたにもかかわらず、正直について偽善的なスピーチをしました。

C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

神聖不可侵

Meaning

Regarded as too important or valuable to be interfered with; sacred.

Example

Freedom of speech is considered sacrosanct in democratic societies.

言論の自由は民主主義社会では神聖不可侵と見なされています。

C1 verb /sɪˈkriːt/

secrete

分泌する

Meaning

to produce and release a substance from a cell, gland, or organ

Example

The pancreas secretes insulin to regulate blood sugar levels.

膵臓は血糖値を調整するためにインスリンを分泌します。

C1 verb /ˈʃʌdər/

shudder

震える

Meaning

to tremble or shake suddenly, often due to fear, cold, or strong emotion

Example

She shuddered at the thought of walking alone in the dark forest.

彼女は暗い森を一人で歩くことを考えただけで震えた。

C1 verb /skɪmp/

skimp

ケチる

Meaning

to use less of something than is necessary in order to save money or effort

Example

Don’t skimp on quality when buying a new laptop.

新しいノートパソコンを買うときは、品質をケチらないでください。

C1 noun /ˈsɛdətɪv/

sedative

鎮静剤

Meaning

A substance that calms the nerves or induces sleep.

Example

The doctor prescribed a sedative to help the patient sleep.

医者は患者が眠れるように鎮静剤を処方しました。

C1 adjective /ˈsaʊnd.pruːf/

Sound-proof

防音; 音の出入りを防ぐ

Meaning

impervious to sound; preventing sound from entering or leaving

Example

The recording studio has sound-proof walls.

レコーディングスタジオには防音壁があります。

C1 adjective /steɪd/

staid

堅実、尊敬される

Meaning

Serious, respectable, and unadventurous.

Example

He came from a staid family background.

彼は堅実な家庭から来た。

C1 verb /smɛlt/

smelt

溶かす

Meaning

to extract metal from its ore by heating and melting

Example

The workers smelt iron from its ore in the factory.

作業員は工場で鉱石から鉄を溶かして取り出します。

C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

安定化

Meaning

The process of making or becoming stable.

Example

The stabilization of the structure was essential after the earthquake.

地震後、構造の安定化が不可欠でした。

C1 noun /ˈstoʊəˌweɪ/

stowaway

密航者

Meaning

A person who hides on a ship, plane, or other vehicle in order to travel secretly without paying.

Example

The crew discovered a stowaway hiding in the cargo hold.

乗組員は貨物室に隠れている密航者を発見しました。