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B1 noun /ˈsʌn.flaʊər/

Sun flower

ひまわり
Meaning
a large yellow flower that turns to face the sun
Example
The sunflower field looked amazing in the bright sunlight.
ひまわり畑は明るい日差しの中で素晴らしく見えました。
B2 noun /slæŋ/

Slang

スラング; 不正な言葉
Meaning
very informal language that is usually spoken rather than written
Example
The teenagers used slang that their parents couldn't understand.
ティーンエイジャーは親が理解できないスラングを使いました。
B2 verb /skɪm/

skim

素早く読む
Meaning
to move quickly over a surface or to read something quickly
Example
She skimmed through the report before the meeting.
彼女は会議の前にレポートをサッと読みました。
A1 verb /stɑːrt/

start

開始する
Meaning
to begin something; to commence; to initiate
Example
Let's start the meeting now.
今すぐ会議を開始しましょう。
B2 adjective /ˈspɒtɪd/

Spotted

斑点のある; 見られた; マークされた
Meaning
having spots or marks; noticed or seen
Example
The spotted leopard moved silently through the jungle.
斑点のあるヒョウはジャングルを静かに歩いた。
A2 noun/verb /sɛns/

sense

センス
Meaning
A faculty by which the body perceives external stimuli; or to perceive something without being told.
Example
She had a strong sense of responsibility.
彼女は責任感が強かった。
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 /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。
B2 noun ˈsoʊʃəl rɪˌspɒnsəˈbɪləti

social responsibility

社会的責任
Meaning
The duty to act in ways that benefit society as a whole.
Example
Social responsibility should be part of the education curriculum.
社会的責任は教育課程の一部であるべきです。
C1 noun /ʃɑːrd/

shard

破片
Meaning
a broken piece of glass, metal, or pottery
Example
He cut his finger on a shard of glass.
彼はガラスの破片で指を切った。
C1 verb /ˌsuːpərˈsiːd/

supersede

置き換える
Meaning
To replace or take the place of something because it is more modern or effective.
Example
This new law will supersede the old regulations.
この新しい法律は古い規則を置き換えます。
C1 adjective /ˈsɛptɪk/

septic

感染した
Meaning
Infected with harmful bacteria; relating to or causing infection.
Example
The doctor treated the patient's septic wound immediately.
医者は患者のセプティックな傷をすぐに治療しました。
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。
C2 noun /ˌsuːpərɪnˈtɛndəns/

superintendence

監督
Meaning
the act of overseeing, supervising, or managing
Example
The superintendence of the school is the principal’s duty.
学校の監督は校長の責任です。
C2 adjective /ˈsfɪŋks laɪk/

sphinx-like

神秘的な
Meaning
Mysterious, enigmatic, or difficult to interpret
Example
Her sphinx-like smile made it hard to guess what she was thinking.
彼女のスフィンクスのような微笑みは、彼女が何を考えているのかを予測するのを難しくさせた。
B2 verb /suː/

sue

訴える
Meaning
to bring a lawsuit against someone in a court of law
Example
She decided to sue the company for damages.
彼女は損害賠償のために会社を訴えることに決めました。
B2 noun, verb /sɪn/

sin

罪
Meaning
an immoral act considered to be a transgression against divine law; to commit an offense against religious or moral law
Example
He confessed his sin to the priest.
彼は神父に自分の罪を告白しました。
A2 noun /ˈsoʊʃəl ˈmiːdiə/

social media

ソーシャルメディア
Meaning
Websites and applications that enable users to create and share content or to participate in social networking.
Example
Social media often causes delays.
ソーシャルメディアはしばしば遅延を引き起こします。
C1 verb /ˈswɛltər/

swelter

強烈な暑さで苦しむ
Meaning
to suffer from intense heat
Example
We began to swelter in the midday sun.
私たちは真昼の太陽の下で汗だくになり始めました。
C2 noun /ˈsɛkstənt/

sextant

セクスタント
Meaning
a navigational instrument with a graduated arc of 60°, used to measure the angle between a celestial object and the horizon
Example
Using a sextant, the navigator fixed the ship’s position at noon.
セクスタントを使用して、ナビゲーターは正午に船の位置を特定しました。
C2 verb /ˈsʌblɪmeɪt/

sublimate

より高い活動に変換する
Meaning
to redirect strong emotions or desires into socially acceptable activities or channels
Example
She sublimated her anger into painting beautiful landscapes.
彼女は美しい風景を描くことで怒りをサブリメートしました。
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。
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。
A1 adjective /seɪm/

same

同じ
Meaning
identical; not different or changed
Example
We wore the same dress at the party.
私たちはパーティーで同じドレスを着ていました。
B1 noun /ˈslɪpər/

Slipper

スリッパ
Meaning
light, comfortable shoe without a back, worn indoors
Example
She put on her slippers before walking around the house.
家の中を歩く前にスリッパを履きました。
C1 noun /ˈsɒl.ɪs/

Solace

慰め
Meaning
comfort or consolation in a time of distress or sadness
Example
She found solace in music after her loss.
彼女は失った後、音楽に慰めを見つけました。
C1 adjective /ˈskeɪ.li/

Scaly

鱗状の
Meaning
covered with scales; having a rough surface like scales
Example
The fish has scaly skin.
その魚はうろこ状の皮膚を持っています。
C2 noun /ˈstænʃən/

stanchion

支柱
Meaning
a strong upright bar or post used as support or to control movement
Example
The red rope was attached to the stanchions to guide the crowd.
赤いロープは群衆を導くためにスタンションに取り付けられていた。
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 noun /slɪt/

Slit

切れ目
Meaning
a long narrow opening or cut
Example
There was a small slit in the fabric.
生地に小さな切れ目がありました。
A2 adjective /sər'praɪz.ɪŋ/

Surprising

驚くべき; 予想外の
Meaning
causing surprise; unexpected; remarkable
Example
It's surprising how quickly children learn new languages.
子供たちが新しい言語をどれだけ早く学ぶかは驚くべきことです。
B2 noun /sɜːˈveɪ.ləns/

surveillance

監視
Meaning
Close observation, especially of a suspected spy or criminal; continuous watching of a place, person, or situation.
Example
Government agencies conduct surveillance on cyber threats.
政府機関はサイバー脅威の監視を行っています。
B1 noun /sɔːrs/

Source

源
Meaning
a place, person, or thing from which something originates; the origin of information
Example
The river's source is high in the mountains.
川の源流は山の高い所にある。
C1 verb, adjective, noun /spruːs/

spruce

整える / 一種の木
Meaning
to make neat or tidy in appearance; also refers to an evergreen tree
Example
He spruced up his room before the guests arrived.
彼はゲストが到着する前に部屋を整えました。
B1 verb /skɪp/

skip

スキップする
Meaning
to omit or pass over something; to move lightly or quickly
Example
He decided to skip breakfast and go straight to work.
彼は朝食をスキップして、仕事に直接行くことに決めました。
C1 noun stɔːrm ɪnˌtensɪfɪˈkeɪʃən

storm intensification

嵐の強化
Meaning
The process by which storms become stronger and more severe in intensity.
Example
Storm intensification is linked to climate change.
嵐の強化は気候変動に関連しています。
B2 noun ˈskeə.sɪ.ti

scarcity

不足
Meaning
The state of being scarce or in short supply; shortage.
Example
Water scarcity threatens agriculture.
水不足が農業に脅威を与えている。
C2 noun /ˈstrɪndʒənsi/

stringency

厳格さ
Meaning
the quality of being strict, precise, or severe
Example
The stringency of the new rules surprised everyone.
新しい規則の厳格さはみんなを驚かせました。
B1 noun ˈstrʌɡ.əl

struggle

闘争
Meaning
A forceful or violent effort to get free of restraint or resist attack; a determined effort under difficult circumstances.
Example
The struggle for independence united the nation.
独立のための闘争が国を団結させた。
B1 noun /saɪt/

site

場所
Meaning
a location or place, often used for a specific purpose, such as a construction site or a website
Example
The construction site is ready for the next phase of the project.
建設現場は次のプロジェクトの段階に進む準備ができています。
A2 adverb /ˈsʌm.weər/

Somewhere

どこか
Meaning
in or at some place; in an unspecified location
Example
I left my keys somewhere in the house.
家の中のどこかに鍵を置いてきた。
A2 verb /smel/

smell

匂いをかぐ
Meaning
to perceive odor through the nose; to have an odor
Example
The flowers smell sweet.
花は甘い香りがする。
B2 verb /sæk/

sack

解雇する
Meaning
to dismiss from a job; to put something in a sack
Example
The company sacked him for poor performance.
会社は業績不良で彼を解雇しました。
B2 verb /sʌk/

suck

吸う
Meaning
to draw something into the mouth by using the lips and tongue
Example
The baby began to suck her thumb.
赤ちゃんは親指を吸い始めた。
B2 noun, verb /steɪk/

stake

株式, リスク
Meaning
A share or interest in a business or venture; to risk or support something of value.
Example
He has a major stake in the new company.
彼は新しい会社に大きな利害関係を持っています。
B2 noun /ˈsɛnət/

senate

セナト
Meaning
a legislative or governing body, typically the upper chamber in a bicameral legislature
Example
The senate voted in favor of the new healthcare bill.
セナトは新しい医療保険法案に賛成票を投じました。
C1 adjective /ˈʃeɪm.ləs/

Shameless

恥知らず
Meaning
having no shame; bold and rude; impudent
Example
The shameless politician refused to apologize for his mistakes.
恥知らずな政治家は自分の過ちを謝罪することを拒んだ。
C1 noun /sloʊθ/

Sloth

怠惰; 仕事や努力をすることに対する reluctance
Meaning
laziness; reluctance to work or make an effort
Example
His sloth prevented him from achieving his goals.
彼の怠惰は、目標達成を妨げました。
B1 noun /ˈseɪ.lər/

Sailor

船員
Meaning
a person who works on a ship or boat; a member of a navy
Example
The experienced sailor navigated the ship through the storm.
経験豊富な船員が嵐を乗り越えて船を操縦した。
B2 adjective /ˈstuː.di.əs/

Studious

勉強熱心; 学問に没頭
Meaning
characterized by diligent study; devoted to learning
Example
She is a studious student who spends hours in the library.
彼女は図書館で何時間も過ごす勉強熱心な学生です。
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 /ˈstaɪfl/

stifle

抑える
Meaning
to prevent or restrain an action, idea, or emotion; to suffocate
Example
She tried to stifle a laugh during the serious meeting.
彼女は真剣な会議中に笑いを抑えようとしました。
C1 verb /slɪŋk/

slink

忍び寄る
Meaning
to move quietly and secretly, often to avoid being noticed
Example
The cat slunk into the room without making a sound.
その猫は音を立てずに部屋に忍び込んだ。
B2 adverb ˌsɪməlˈteɪnɪəsli

simultaneously

同時に
Meaning
At the same time; occurring or existing at the same time.
Example
He worked on two projects simultaneously.
彼は二つのプロジェクトを同時に進めていました。
B1 noun, verb /skiːm/

scheme

計画 / 陰謀
Meaning
a plan or arrangement, especially one that is secret or dishonest
Example
They devised a scheme to cheat investors.
彼らは投資家をだますために計画を立てました。
C1 noun /ˈskruːpəl/

scruple

良心の呵責
Meaning
A moral or ethical consideration that restrains actions.
Example
He had no scruples about lying to get ahead.
彼は前進するために嘘をつくことに対して良心の呵責を感じていなかった。
C2 noun /ˈsɒlɪˌsɪzəm/

solecism

文法ミス
Meaning
a grammatical mistake in speech or writing; a breach of good manners or etiquette
Example
His speech was full of solecisms and awkward phrases.
彼のスピーチは文法ミスと不器用なフレーズでいっぱいだった。
A2 noun /ˈsoʊldʒər/

soldier

兵士
Meaning
a person who serves in an army, especially as a professional fighter
Example
The soldier marched proudly with his unit.
兵士は誇りを持って自分の部隊と共に行進した。
B2 verb /ˈsuːpərvaɪz/

supervise

監督する
Meaning
to watch and direct a person or activity to ensure things are done correctly
Example
The teacher supervises students during the exam.
教師は試験中に学生を監督します。
B1 verb /straɪk/

Strike

打つ
Meaning
to hit forcefully; to stop work as a form of protest
Example
Lightning strikes the tall building during the storm.
雷は嵐の中で高いビルを打つ。
C1 adjective /ˈsɛnʃuəs/

sensuous

官能的
Meaning
Relating to or affecting the senses rather than the intellect; pleasing to the senses.
Example
The garden was filled with sensuous colors and fragrances.
庭は官能的な色と香りで満たされていた。
B2 noun /səkˈsɛʃ.ən/

succession

生態遷移
Meaning
The process of ecological change in which one community of organisms is gradually replaced by another.
Example
Forest succession occurs when old ecosystems are replaced by new ones.
森林の遷移は、古い生態系が新しい生態系に置き換えられるときに発生します。
B2 noun /ˈstrʌk.tʃərz/

structures

構造物
Meaning
Buildings or other objects constructed from several parts.
Example
The region has ancient structures.
その地域には古代の構造物があります。
C1 verb /sərˈmaɪz/

surmise

推測する
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
彼女は彼が会議に来ないだろうと推測した。
A1 verb /set/

set

設置する
Meaning
to put or place something in a position; to establish
Example
She set the book on the table.
彼女は本をテーブルに置いた。
C2 adjective /saɪˈdɪəriəl/

sidereal

恒星の
Meaning
Relating to the stars or constellations; measured relative to the stars.
Example
Astronomers use sidereal time to track the positions of stars.
天文学者は恒星時を使用して星の位置を追跡します。
C2 adjective /ˌsuːpərˈæn.ju.eɪ.tɪd/

superannuated

時代遅れの
Meaning
old and no longer useful or valid; retired due to age
Example
The factory was filled with superannuated machines that slowed production.
工場には生産を遅くする時代遅れの機械が満載でした。
A1 noun /sɛpˈtɛmbər/

september

9月
Meaning
The ninth month of the year in the Gregorian calendar
Example
My birthday is in September, and I always celebrate it with friends.
私の誕生日は9月で、いつも友達と一緒に祝います。
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。
B2 adjective /steɪl/

Stale

古くなった; しけた; 新鮮でない
Meaning
no longer fresh; lacking originality or novelty
Example
The bread became stale after sitting out for three days.
パンは三日後に古くなった。
C2 noun /ˌsɒ̃ˈfrwɑː/

sang-froid

冷静
Meaning
Composure or coolness, especially in difficult situations.
Example
The leader handled the crisis with remarkable sang-froid.
リーダーは危機を見事な冷静さで対処しました。
C1 noun /siˈɛrə klʌb/

Sierra Club

シエラクラブ
Meaning
An American environmental organization founded in 1892 by John Muir, focused on promoting conservation of the natural environment by influencing public policy decisions.
Example
John Muir founded the Sierra Club in 1892 to protect wild areas.
ジョン・ミューアは1892年にシエラクラブを設立し、野生地帯を保護しました。
C2 adjective /sʌbˈlɪŋɡwəl/

sublingual

舌下
Meaning
situated or applied under the tongue
Example
The doctor prescribed a sublingual tablet for faster absorption.
医師は吸収を早めるために舌下錠を処方しました。
B1 noun /ˈsʌb.mə.riːn/

Sub-marine

潜水艦
Meaning
a warship with a streamlined hull designed to operate completely submerged in the sea
Example
The submarine dived deep into the ocean to avoid detection.
潜水艦は海中深く潜水して、発見を避けました。
B2 noun smɔːl ˈɛfərt

Small Effort

小さな努力
Meaning
Minor actions or initiatives that can collectively make a significant impact.
Example
Small efforts can bring big changes in butterfly conservation.
小さな努力が蝶の保護に大きな変化をもたらすことができる。
C1 adjective /ˈspraɪtli/

sprightly

活発な
Meaning
full of energy and life; lively
Example
The sprightly old man danced with joy at the wedding.
活発な老紳士は結婚式で喜びながら踊った。
A2 adjective /ˈsep.ər.ət/

Separate

別々; 異なる; 個別; 分離
Meaning
distinct; not connected; individual; apart
Example
Please keep your personal and professional lives separate.
個人的な生活とプロフェッショナルな生活は分けておいてください。
B2 adjective /ˈʃeɪ.di/

Shady

日陰の; 疑わしい; 不誠実な;
Meaning
providing shade; dishonest; suspicious
Example
The shady businessman made a suspicious deal.
その日陰の商人は疑わしい取引をしました。
B2 noun /ˌspɛsɪfɪˈkeɪʃən/

specification

仕様書
Meaning
a detailed description or assessment of something
Example
The product specification includes all the necessary details.
製品の仕様書にはすべての必要な詳細が含まれています。
A1 noun /stɑːr/

Star

星
Meaning
a fixed luminous point in the night sky that produces light and heat through nuclear fusion
Example
Thousands of stars are visible in the clear night sky.
何千もの星が澄んだ夜空に見える。
C1 adjective /ˈsliːzi/

sleazy

不道徳な、汚い、または低品質な
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
彼はダウンタウンのスリージーなナイトクラブを避けた。
A2 noun /ˈstrɔːbəri/

Strawberry

いちご
Meaning
a small red heart-shaped fruit with tiny seeds on the surface and sweet taste
Example
I love eating fresh strawberries with cream during summer.
夏にクリームを添えた新鮮ないちごを食べるのが大好きです。
C1 noun/verb /snɛər/

snare

罠
Meaning
a trap for catching animals; to catch or trap
Example
The hunter set a snare to catch rabbits.
ハンターはウサギを捕まえるために罠を仕掛けました。
C1 noun /səbˈvɜːrʒən/

subversion

転覆
Meaning
the act of trying to destroy or undermine an established system or authority
Example
The government accused the rebels of planning subversion.
政府は反乱者が転覆を計画していると非難した。
B2 adjective /ˈspɛʃəˌlaɪzd/

specialized

専門的な
Meaning
designed or developed for a particular purpose or function
Example
He has a specialized knowledge of ancient civilizations.
彼は古代文明に関する専門的な知識を持っています。
C2 noun /skriːd/

screed

長く退屈な文書
Meaning
a long, tedious piece of writing or speech; also a layer of material like cement spread on a surface
Example
He delivered a long screed against corruption.
彼は腐敗に反対する長いスピーチをしました。
C1 adjective /sɛkˈtɛəriən/

sectarian

宗派的
Meaning
relating to or characterized by the differences between sects, often leading to conflict
Example
The region has been troubled by sectarian violence for decades.
この地域は数十年にわたり宗派的な暴力に悩まされてきました。
C2 noun/verb /ˈsʌkər/

succor

援助
Meaning
Assistance and support in times of hardship or distress.
Example
The charity provided succor to the flood victims.
慈善団体は洪水の被害者に援助を提供しました。
B2 adjective strəˈtiː.dʒɪk

strategic

戦略的
Meaning
Relating to the identification of long-term or overall aims and interests and the means of achieving them.
Example
Strategic policies enhance competitiveness.
戦略的な政策は競争力を高めます。
A2 noun /skɪlz/

skills

技術
Meaning
The ability to do something well; expertise.
Example
Learning new skills can increase personal and professional growth.
新しいスキルを学ぶことで、個人的および職業的成長が促進されることがあります。
B2 adjective sɪnˈθet̬.ɪk

synthetic

合成の
Meaning
Made by chemical synthesis, especially to imitate a natural product; artificial.
Example
Synthetic chemicals are used in processed foods.
合成化学物質は加工食品に使用されます。
C2 adjective /səˈræfɪk/

seraphic

天使のような
Meaning
Of or like a seraph; angelic, pure, and blissful.
Example
She gave him a seraphic smile that calmed his fears.
彼女は彼に天使のような微笑みをくれて、彼の恐れを和らげた。
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。
B2 noun /ˈsɪnənɪm/

Synonym

同義語
Meaning
a word or phrase that means exactly or nearly the same as another word or phrase in the same language
Example
Happy and joyful are synonyms.
ハッピーとジョイフルは同義語です。
B2 verb /ˈstʌmbəl/

stumble

つまずく
Meaning
to trip or lose balance while walking or running; to make a mistake or falter
Example
He stumbled on the uneven pavement.
彼はでこぼこな歩道でつまずいた。
C2 adjective /ˌsɒfəˈmɒrɪk/

sophomoric

未熟
Meaning
showing immaturity and overconfidence, like a sophomore
Example
His sophomoric behavior embarrassed his friends.
彼の未熟な行動は友人たちを恥ずかしい思いにさせた。
A1 adjective /sæd/

sad

悲しい
Meaning
feeling or showing sorrow; unhappy
Example
She felt sad after hearing the bad news.
悪いニュースを聞いて、彼女は悲しい気持ちになった。
B1 noun səˈluː.ʃənz

solutions

解決策
Meaning
A means of solving a problem or dealing with a difficult situation.
Example
Biotechnology provides solutions to environmental challenges.
バイオテクノロジーは環境問題に対する解決策を提供します。
C1 adjective /səbˈmɪs.ɪv/

Submissive

従順; 服従的; 謙虚な
Meaning
ready to obey others; yielding to authority; humble and compliant
Example
She became submissive after years of harsh treatment.
厳しい扱いの後、彼女は従順になった。
B2 noun /sɛnt/

scent

香り
Meaning
a distinctive smell, especially a pleasant one
Example
The scent of roses filled the garden.
バラの香りが庭いっぱいに広がった。
B2 adverb /ˈsel.fɪʃ.li/

Selfishly

利己的に
Meaning
in a selfish manner; caring only about oneself
Example
He selfishly took all the cookies.
彼は自己中心的にすべてのクッキーを取った。
C2 verb /ˌsuːpərˈæd/

superadd

追加する
Meaning
to add something to what has already been added
Example
The author chose to superadd a new chapter to the revised edition.
著者は改訂版に新しい章を追加することに決めました。
C1 noun /səˈsteɪnəbl ˈæɡrɪkʌltʃər/

sustainable agriculture

持続可能な農業
Meaning
Farming practices that meet current food needs while preserving environmental resources and maintaining the ability to produce food for future generations through ecologically sound methods.
Example
Sustainable agriculture practices protect the environment while ensuring food security.
持続可能な農業の実践は、環境を保護しながら食料安全保障を確保します。
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 noun /ˈstaɪpend/

Stipend

奨学金
Meaning
a fixed regular sum paid as a salary or allowance
Example
The research student receives a monthly stipend for living expenses.
研究学生は生活費のために毎月奨学金を受け取ります。
B2 noun, verb /striːk/

streak

線または筋; 指定された方向に非常に速く移動する
Meaning
a long, thin line or mark; to move very quickly in a specified direction
Example
Lightning streaked across the night sky.
稲妻が夜空を横切った。
B1 verb /skrætʃ/

scratch

幸せ
Meaning
to rub a surface or skin with something sharp or rough, often to relieve itching
Example
The cat scratched the door to be let in.
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。
C1 noun ˈstræt.ə.sfɪər

stratosphere

成層圏
Meaning
The layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface.
Example
The stratosphere provides a unique environment.
成層圏は特別な環境を提供します。
B2 verb /stʌn/

stun

驚かす, 気絶させる
Meaning
to shock or surprise someone greatly; to knock someone unconscious or dazed
Example
The news of her sudden resignation stunned everyone.
彼女の突然の辞任のニュースは皆を驚かせた。
B2 adjective /ˈslʌɡ.ɪʃ/

Sluggish

遅い; 鈍い; 非活動的
Meaning
slow-moving; lacking energy or alertness; inactive
Example
The old computer became sluggish after running for hours.
古いコンピュータは数時間動かした後、遅くなった。
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。
B1 verb /stiːl/

steal

盗む
Meaning
to take something without permission; to rob
Example
It's wrong to steal from others.
他人から盗むことは間違っています。
A2 noun ˈsɜːvɪsɪz

services

サービス
Meaning
The action of helping or doing work for someone.
Example
Services in the healthcare industry are essential for well-being.
医療業界のサービスは、福祉に不可欠です。
A2 noun /ʃɛlf/

shelf

棚
Meaning
a flat surface used for storing or displaying things, typically fixed to a wall or inside a cabinet
Example
I placed the books on the shelf next to the window.
窓の近くの棚に本を置きました。
C2 noun /sɒmˈnæmbjʊlɪst/

somnambulist

夢遊病者
Meaning
A person who sleepwalks.
Example
The somnambulist wandered out of the house at night.
夢遊病者は夜に家を出た。
B2 noun /ˈsɜːr.plʌs/

surplus

余剰
Meaning
An amount that is more than what is needed.
Example
The country has a surplus of food this year.
今年、その国には食料の余剰があります。
B2 noun /ˈspəʊkspɜːrsən/

spokesperson

スポークスマン
Meaning
a person who speaks on behalf of others or an organization
Example
The spokesperson addressed the press conference on behalf of the company.
スポークスマンは会社を代表して記者会見で話しました。
A2 adjective /sɔft/

Soft

柔らかい; やさしい; 静か
Meaning
not hard or firm; gentle; quiet; tender
Example
The pillow is very soft and comfortable.
枕はとても柔らかくて快適です。
C2 noun /sfɛˈrɪsɪti/

sphericity

球形
Meaning
The quality or state of being spherical; roundness.
Example
The sphericity of the ball made it roll smoothly on the ground.
ボールの球形は、地面でスムーズに転がるのを可能にしました。
C2 verb /stɑːntʃ/

stanch

止血する
Meaning
to stop the flow of blood or liquid from a wound or source
Example
The nurse quickly stanched the bleeding from the cut.
看護師はすぐに切り傷からの出血を止めました。
A2 noun /spɔːt/

sport

スポーツ
Meaning
an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment
Example
Football is a popular sport around the world.
サッカーは世界中で人気のスポーツです。