someone
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A1 pronoun /ˈsʌmwʌn/

someone

誰か
Meaning
a person, but not specifically known or named
Example
Someone left their umbrella in the hallway.
誰かが廊下に傘を忘れました。
C1 adjective /ˌsʌbˈkɒn.ʃəs/

subconscious

潜在意識
Meaning
Of or concerning the part of the mind which one is not fully aware of but which influences actions and feelings.
Example
Fears often come from the subconscious mind.
恐怖はしばしば潜在意識から生まれます。
C2 noun /stɛp/

steppe

ステップ
Meaning
A large flat area of unforested grassland, especially in southeastern Europe or Siberia.
Example
The nomads traveled across the vast steppe with their herds.
遊牧民は自分の家畜を連れて広大なステップを渡っていた。
C1 noun ˈsɛlf pəˈzɪʃən

self-possession

自己抑制
Meaning
The quality of being calm and confident and in control of one's emotions; composure.
Example
His self-possession during the crisis was remarkable.
彼の危機的な状況での自己抑制は素晴らしかった。
B2 noun /sɪmˈplɪsɪti/

Simplicity

単純さ; 明確さ
Meaning
the quality of being simple; lack of complexity or intricacy
Example
The beauty of the design lies in its simplicity.
デザインの美しさはその単純さにあります。
B1 verb /spaɪ/

spy

スパイする
Meaning
to secretly collect information about a person, group, or country
Example
He was caught spying on his neighbor through the window.
彼は窓越しに隣人をスパイしているところを捕まえられた。
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。
A1 noun /ʃuː/

Shoe

靴
Meaning
covering for the foot, typically made of leather or cloth
Example
She bought a new pair of running shoes for exercise.
彼女は運動用の新しいランニングシューズを買いました。
C1 verb /ˈsaɪdˌstɛp/

sidestep

回避する
Meaning
To avoid something by stepping aside; to evade a problem or question indirectly.
Example
The politician tried to sidestep the difficult question.
政治家はその難しい質問を避けようとした。
B2 verb /ˈsɒfən/

soften

柔らかくする
Meaning
to make or become less hard, severe, or strong.
Example
Heat will soften the butter quickly.
熱はバターをすぐに柔らかくします。
C1 adjective /səbˈsɜːviənt/

subservient

Meaning
prepared to obey others unquestioningly; less important than something else
Example
She was too subservient to challenge his decision.
C2 noun /ˌsæv.wɑːr ˈfeər/

savoir-faire

社交術
Meaning
The ability to act or speak appropriately in social situations; polished social skills.
Example
She handled the delicate situation with remarkable savoir-faire.
彼女は見事な社交術で微妙な状況をうまく処理しました。
C2 noun /ˈsaʊər wʊd ˈæp.əl/

Sour wood apple

ゾウのリンゴ
Meaning
a tropical fruit with hard shell and tangy flesh; elephant apple
Example
The sour wood apple has a unique taste that many people enjoy.
ゾウのリンゴはユニークな味があり、多くの人々が楽しんでいます。
B2 noun /ˈsɑːrdʒənt/

sergeant

軍曹
Meaning
A rank of non-commissioned officer in the armed forces or police.
Example
The sergeant gave orders to the soldiers before the mission.
軍曹は任務の前に兵士たちに命令を出した。
C2 noun /ˈsɒfɪstri/

sophistry

詭弁
Meaning
the use of clever but false arguments, often to deceive
Example
The politician's speech was full of sophistry.
その政治家の演説は詭弁に満ちていた。
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 adjective /ˈʃɪp.ʃeɪp/

Shipshape

きちんと整頓された; よく整理された; 良好な状態
Meaning
neat and tidy; in good order; well-organized
Example
Everything was shipshape before the inspection.
検査の前にすべてが完璧でした。
B2 adjective /ˈslɒp.i/

Sloppy

だらしない; 汚い; 注意を払わずに行われた
Meaning
careless; messy; done without care or attention to detail
Example
His sloppy handwriting was difficult to read.
彼の乱雑な手書きは読みにくかった。
B2 adjective /ˌsen.tɪˈmen.təl/

Sentimental

感傷的な
Meaning
having tender feelings; being emotional about memories or experiences
Example
She became sentimental when looking at old family photographs.
彼女は昔の家族写真を見て感傷的になった。
C1 verb /ˈstaɪfəld/

stifled

抑える
Meaning
to suppress, hold back, or prevent something from happening
Example
He stifled a laugh during the serious meeting.
彼は真面目な会議中に笑いを抑えた。
A2 noun sɔːŋz

songs

歌
Meaning
A short poem or other set of words set to music or meant to be sung.
Example
Listen to songs to learn pronunciation.
発音を学ぶために歌を聞いてください。
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。
C2 verb /ˈsʌn.dər/

sunder

引き裂く
Meaning
To split apart or separate, especially with force.
Example
The war sundered families and friends.
戦争は家族と友人を引き裂きました。
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 noun /spekˈteɪtər/

Spectator

観客
Meaning
a person who watches at a show, game, or other event; an observer
Example
The stadium was filled with excited spectators.
スタジアムは興奮した観客でいっぱいでした。
B1 noun /swɒn/

Swan

白鳥
Meaning
a large waterbird with a long curved neck and usually white plumage
Example
The elegant swan glided silently across the water.
優雅な白鳥が水面を静かに滑っていきました。
B2 noun /ˌsoʊsiˈɑːlədʒi/

sociology

社会学
Meaning
the study of society, human relationships, and social institutions
Example
She is studying sociology at university.
彼女は大学で社会学を学んでいます。
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。
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。
C1 adjective /ˈspɪndli/

spindly

細くて弱い
Meaning
Long, thin, and weak-looking
Example
The spindly tree bent under the weight of the snow.
細い木が雪の重みで曲がった。
C2 adjective /ˈsɪlvən/

sylvan

森林の
Meaning
Relating to or characteristic of the woods or forest.
Example
The cottage was set in a sylvan landscape full of tall trees.
その小屋は、高い木々に囲まれた森林の風景の中にありました。
B2 verb, noun /ʃeɪv/

shave

髭を剃る
Meaning
To remove hair from the body, typically using a razor; the act of removing hair
Example
He likes to shave every morning before work.
彼は毎朝仕事の前に髭を剃るのが好きです。
C1 verb /ˈsɛvər/

sever

切る、関係を断つ
Meaning
to cut off or separate, especially by cutting; to end a connection or relationship
Example
He had to sever ties with the company after the dispute.
彼は争いの後、会社との関係を断たなければならなかった。
B2 noun /səˈvaɪvl/

survival

サバイバル
Meaning
the state of continuing to live or exist, typically in difficult conditions
Example
Survival in the wild can be a challenging experience.
野生でのサバイバルは、挑戦的な経験となることがあります。
C2 adjective /suːˈpɜːrnəl/

supernal

天上的
Meaning
Relating to the heavens; celestial or divine.
Example
The painting captured a supernal beauty that felt otherworldly.
その絵は、まるで別の世界から来たような天上的な美しさを捉えました。
C2 verb /səˈfjuːz/

suffuse

広がる
Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
彼女が微笑んだとき、暖かい輝きが彼女の顔に広がった。
B2 verb /ˈsɪmpəθaɪz/

sympathize

同情する
Meaning
to feel sorry for someone; to understand and share someone's feelings
Example
I sympathize with your loss.
あなたの損失に同情します。
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

偶然の幸運
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
カフェでの彼らの出会いは完全に偶然の幸運でした。
C1 adjective /suːˈpɜːr.flu.əs/

superfluous

余分な
Meaning
Unnecessary, especially through being more than enough.
Example
His speech contained too many superfluous details.
彼のスピーチには、余分な詳細が多すぎた。
B2 verb /soʊk/

soak

浸す
Meaning
to make something completely wet by immersing it in liquid
Example
She soaked the clothes in water before washing them.
彼女は洗濯する前に服を水に浸しました。
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。
C1 noun /ʃraɪn/

Shrine

聖地; 神殿; 祈りの場
Meaning
a holy or sacred place dedicated to a specific deity, ancestor, hero, or saint
Example
Pilgrims visit the shrine to pray for good health.
巡礼者たちは健康を祈るために神殿を訪れます。
B2 adverb /ˈʃɑːrpli/

sharply

急激に
Meaning
suddenly and strongly; in a cutting or intense way
Example
Prices rose sharply after the announcement.
発表後、価格は急激に上昇した。
B2 noun /ˈspɒnsəʃɪp/

sponsorship

後援
Meaning
the act of supporting an event, activity, person, or organization financially or through other resources
Example
The event was made possible due to the sponsorship of several big companies.
イベントは、いくつかの大企業の後援のおかげで実現しました。
A2 adverb /ˈsloʊli/

slowly

ゆっくり
Meaning
in a slow manner
Example
She walked slowly to the door.
彼女はゆっくりとドアに向かって歩いた。
B1 verb /stɛə/

stare

じっと見る
Meaning
to look at something with a fixed gaze
Example
She stared at the painting for hours.
彼女は何時間も絵をじっと見つめていました。
A2 verb /ʃaɪn/

shine

輝く
Meaning
to give out a bright light or glow
Example
The sun will shine brightly tomorrow.
太陽は明日明るく輝きます。
C2 noun /sɪˈdɪʃ.ən/

Sedition

反乱罪
Meaning
conduct or speech inciting people to rebel against authority; treason
Example
The activist was charged with sedition for his inflammatory speeches.
活動家はその扇動的な演説のために反乱罪で起訴された。
B1 noun /ˈsɪɡ.nəl/

Signal

信号
Meaning
a gesture, action, or sound that conveys information or instruction
Example
The traffic signal turned red, so we stopped.
信号が赤に変わったので、私たちは止まりました。
C2 noun /səbˈmɜːrʒən/

submersion

沈没
Meaning
the state of being under water
Example
The submersion of the fields lasted for several days after the heavy rain.
激しい雨の後、畑の沈没は数日間続いた。
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。
B2 adverb /ˈsɛp.ər.ət.li/

separately

別々に
Meaning
in a way that is apart or individually; not together
Example
They decided to travel separately to the conference.
彼らは会議に別々に行くことに決めた。
B2 verb, noun /sniːz/

sneeze

くしゃみをする
Meaning
to expel air involuntarily from the nose and mouth due to irritation; the act of sneezing
Example
I had to sneeze during the meeting.
会議中にくしゃみをしなければならなかった。
C1 noun /ˈskep.tɪ.sɪ.zəm/

skepticism

懐疑主義, 疑念
Meaning
A skeptical attitude; doubt as to the truth of something.
Example
His skepticism about new technology often makes him resistant to change.
新しい技術に対する彼の懐疑主義は、彼を変化に対して抵抗力を持たせる。
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 /ˈswɪndlɚ/

swindler

詐欺師
Meaning
a person who cheats or deceives others for money or gain
Example
The police finally caught the notorious swindler.
警察はついに悪名高い詐欺師を捕まえた。
B1 noun ˈseʃən

session

セッション
Meaning
A meeting of an official body, especially a legislature, council, or court of law, to conduct its business.
Example
The session was held on February 25.
セッションは2月25日に開催されました。
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。
A2 adjective /streɪt/

Straight

まっすぐな; 直線的な; 正直な;
Meaning
extending or moving uniformly in one direction; not curved or bent; honest
Example
Draw a straight line from point A to point B.
ポイントAからポイントBまでまっすぐな線を引いてください。
B1 noun /ˈsʌn.set/

Sunset

夕日
Meaning
the time in the evening when the sun disappears below the horizon
Example
The romantic sunset painted the sky in golden colors.
ロマンチックな夕日が空を黄金色に塗りつけました。
C2 noun /ˈstrɪk.tʃər/

stricture

制限、批判
Meaning
a restriction or limitation; a critical remark
Example
The new law placed a severe stricture on free speech.
新しい法律は言論の自由に厳しい制限を課した。
B1 noun /ˈsæl.ər.i/

Salary

給料
Meaning
a fixed regular payment, typically paid on a monthly basis
Example
She receives a good salary for her work as a teacher.
彼女は教師としての仕事に対して良い給料を受け取っています。
C2 adjective /ˈsiːmli/

seemly

適切
Meaning
proper or appropriate in behavior or appearance
Example
It was not seemly to argue loudly during the ceremony.
式典中に大声で議論するのは適切ではありませんでした。
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。
B2 adverb /ˈsmuːð.li/

Smoothly

スムーズに; 問題なく
Meaning
without problems or difficulties; in an even and regular way
Example
The car runs smoothly on the new highway.
車は新しい高速道路でスムーズに走る。
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。
C1 verb /ˈsætəˌraɪz/

satirize

風刺する
Meaning
to mock or criticize something using satire
Example
The play satirizes the greed of modern corporations.
その劇は現代の企業の貪欲さを風刺しています。
C2 adjective /ˈsætərˌnaɪn/

saturnine

陰気な
Meaning
slow and gloomy in mood
Example
His saturnine expression made everyone in the room uncomfortable.
彼の陰気な表情は部屋の中の誰もが不快に感じさせた。
B2 adjective /suːˈpriːm/

Supreme

最高の
Meaning
highest in rank, authority, or quality; greatest; most important
Example
The Supreme Court made the final decision.
最高裁判所は最終的な決定を下しました。
C1 verb /səˈlɪdəˌfaɪ/

solidify

強化する
Meaning
To make something firm, strong, or more certain.
Example
The company solidified its position in the market.
その会社は市場での位置を固めました。
A1 noun/adjective /saʊθ/

south

南
Meaning
the direction towards the bottom of a map, opposite to north
Example
The sun rises in the east and sets in the south.
太陽は東で昇り、南で沈みます。
B2 noun /ˈsʌm.ɪt/

summit

サミット
Meaning
A high-level meeting between leaders, especially of governments; a conference.
Example
The summit addressed pressing global issues.
サミットは緊急のグローバルな問題を取り上げました。
C1 noun səˈsteɪ.nə.bəl tekˈnɒl.ə.dʒi

sustainable technology

持続可能な技術
Meaning
Technology designed to meet present needs without compromising future generations' ability to meet their needs.
Example
Sustainable technology ensures a cleaner future.
持続可能な技術は、よりクリーンな未来を保証します。
C1 adjective /ˈsɪlkən/

Silken

絹の; 柔らかい; 滑らか;
Meaning
made of silk; smooth and soft like silk
Example
She wore a beautiful silken dress to the party.
彼女はパーティーに美しい絹のドレスを着ていきました。
B1 noun /sɔɪl/

soil

土壌
Meaning
The upper layer of earth in which plants grow.
Example
The soil in this area is reddish.
この地域の土壌は赤みがかっています。
A2 noun /seɪl/

sale

販売
Meaning
the exchange of a commodity for money; the action of selling something
Example
The store is having a sale on winter clothing.
その店は冬物衣料のセールを行っています。
B2 noun /ˈswɛər wɜːrd/

swear-word

罵り言葉
Meaning
An offensive or rude word used to express anger or frustration.
Example
He shouted a swear-word when he hit his toe.
彼は足の指を打ったとき、罵り言葉を叫びました。
C1 noun, verb /spreɪn/

sprain

捻挫
Meaning
an injury to a joint in which the ligaments are stretched or torn
Example
She sprained her ankle while running in the park.
公園で走っているときに足首をねんざした。
C1 verb /ˈstɪp.jʊ.leɪt/

stipulate

規定する
Meaning
to demand or specify a condition in an agreement or contract
Example
The contract stipulates that payment must be made within 30 days.
契約書には、支払いは30日以内に行われるべきであると明記されています。
A1 verb /stɒp/

stop

止める
Meaning
to cease moving or operating; to halt; to prevent
Example
Please stop talking during the movie.
映画の間に話すのをやめてください。
A2 noun /ˈʃaʊər/

shower

Meaning
a brief fall of rain or snow or a device for taking a bath or washing oneself
Example
After the workout, I took a quick shower to refresh myself.
C2 verb /ˈsʌli/

sully

汚す
Meaning
to damage the purity, integrity, or reputation of something
Example
The scandal sullied the politician’s reputation.
スキャンダルは政治家の評判を汚した。
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。
A2 noun/verb/adjective /ˈsʌbdʒɪkt/ (noun), /səbˈdʒɛkt/ (verb)

subject

科目
Meaning
noun: a topic or theme; verb: to cause to undergo; adjective: dependent or under authority
Example
The teacher introduced a new subject in class.
先生はクラスで新しい科目を紹介しました。
C2 noun /ˌsuː.pər.əˈbʌn.dəns/

superabundance

過剰な豊富さ
Meaning
An excessive or overflowing amount of something.
Example
The garden was filled with a superabundance of flowers.
庭は花の過剰な豊富さで満たされていました。
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。
C2 adjective /səˈprɛsəbl̩/

suppressible

抑制可能な
Meaning
capable of being restrained, controlled, or prevented
Example
The symptoms of the disease are suppressible with medication.
病気の症状は薬で抑制可能です。
C1 adjective /skəˈlæstɪk/

scholastic

学問的な
Meaning
Relating to schools, education, or academic learning.
Example
The school organizes scholastic competitions every year.
学校は毎年学問的な競技を開催します。
C2 noun /səˈvɑːnt/

savant

Meaning
a learned person, especially a distinguished scientist or scholar; sometimes used in the phrase ‘savant syndrome’ for someone with exceptional abilities alongside developmental differences
Example
The conference keynote was delivered by a linguistic savant who studies endangered languages.
C2 noun /ˈsɪkəfənt/

sycophant

お世辞使い
Meaning
A person who acts obsequiously toward someone important in order to gain advantage.
Example
The manager was surrounded by sycophants who agreed with everything he said.
マネージャーは、彼が言ったことすべてに同意するお世辞を言う人々に囲まれていました。
C2 verb /ˈsʌbdʒʊˌɡeɪt/

subjugate

支配する
Meaning
To bring under domination or control, especially by conquest.
Example
The empire sought to subjugate the neighboring kingdoms.
帝国は隣接する王国を従わせようとした。
B2 verb /stæk/

stack

Meaning
to arrange things in a neat pile or one on top of another
Example
He stacked the books neatly on the shelf.
C1 /skwɒt/

squat

しゃがむ
Meaning
to crouch or sit with knees bent and body close to the ground
Example
He squatted down to tie his shoes.
彼は靴を結ぶためにしゃがんだ。
B2 noun /streɪn/

Strain

緊張; 圧力; 疲労;
Meaning
pressure or tension; excessive demand on strength or resources
Example
Working long hours put a strain on his health.
長時間働くことは彼の健康に圧力をかけました。
A1 noun /ˈsæləd/

salad

サラダ
Meaning
a dish consisting of various ingredients, typically including vegetables, which are usually mixed with a dressing
Example
She made a fresh salad with lettuce, tomatoes, and cucumbers.
彼女はレタス、トマト、きゅうりを使って新鮮なサラダを作りました。
B2 noun /skʌl/

Skull

頭蓋骨
Meaning
the bony framework of the head that protects the brain
Example
The doctor examined the skull X-ray carefully.
医者は慎重に頭蓋骨のX線写真を調べました。
B2 adjective /self səˈfɪʃənt/

Self-sufficient

自給自足
Meaning
able to provide for oneself without depending on others
Example
The farm is completely self-sufficient in producing vegetables.
その農場は野菜の生産に完全に自給自足です。
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。
B1 adjective /ˈsɒlɪd/

solid

固体
Meaning
firm and stable in shape; not liquid or fluid
Example
The ground was solid underfoot.
地面は足元で固かった。
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

感受性
Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
感染症に対する高い感受性は追加のケアを必要とします。
C2 noun /skʌlˈdʌɡəri/

skulduggery

不正行為
Meaning
underhanded or dishonest behavior
Example
The politician was accused of financial skulduggery.
その政治家は金融詐欺で告発された。
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。
B1 adverb /sɪnˈsɪrli/

sincerely

心から
Meaning
with genuine feelings; honestly and truly
Example
I sincerely hope you recover soon.
私は心からあなたが早く回復することを願っています。
C1 noun /slæb/

slab

スラブ
Meaning
a large, thick, flat piece of stone, concrete, or other hard material
Example
The workers laid a concrete slab for the foundation.
作業員たちは基礎のためにコンクリートのスラブを敷きました。
C1 noun /ˈsiːskeɪp/

seascape

海の景色
Meaning
A view or painting of the sea.
Example
The artist painted a beautiful seascape at sunset.
アーティストは夕日で美しい海の景色を描きました。
B2 adjective /swɪft/

swift

Meaning
moving very quickly; happening promptly
Example
The river current was swift after the heavy rain.
B2 noun /səˈplaɪə(r)/

supplier

供給者
Meaning
a person or company that provides goods or services
Example
The supplier delivered the products on time.
供給者は時間通りに商品を納品しました。
C2 verb /sʌbˈtɛnd/

subtend

角度を作る
Meaning
To extend across or form an angle at a particular point, often used in geometry.
Example
The arc subtends a 60-degree angle at the center of the circle.
アークは円の中心で60度の角度を作ります。
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 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。
B2 adjective /ˈsteɪʃəˌneri/

stationary

静止
Meaning
Not moving or not intended to be moved.
Example
The car remained stationary at the red light.
車は赤信号で静止したままでした。
C1 noun /səˈrɛn.ɪ.ti/

serenity

静けさ
Meaning
The state of being calm, peaceful, and untroubled.
Example
Meditation helps in achieving inner serenity.
瞑想は内面的な静けさを達成するのに役立ちます。
B1 adjective ˈsʌb.mə.riːn

submarine

潜水艦
Meaning
Existing, occurring, or used underwater, especially in relation to vessels or cables.
Example
Submarine cables facilitate international communication.
潜水艦ケーブルは国際通信を容易にします。
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。
A2 adverb /ˈstrɒŋɡli/

strongly

強く
Meaning
in a strong manner or to a great extent
Example
She strongly believes in the power of positive thinking.
彼女はポジティブな思考の力を強く信じています。
A2 noun /sɜːr/

sir

サー
Meaning
a respectful or formal form of address used for a man, typically one of higher social status or authority
Example
Sir, may I assist you with your order?
サー、注文をお手伝いできますか？
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。
B2 adjective /ˈspɪr.ɪ.tʃu.əl/

Spiritual

精神的; 宗教的; 神聖な
Meaning
relating to the human spirit or soul; religious or sacred
Example
She found spiritual peace through meditation.
彼女は瞑想を通じて精神的な平和を見つけました。
C1 noun /ˈstɛnsəl/

stencil

型抜き
Meaning
A thin sheet of material with a design cut out, used to produce the design on the surface below by applying paint or ink through the cut-out holes.
Example
The artist used a stencil to paint identical stars on the wall.
アーティストは壁に同じ星を描くために型抜きを使用しました。
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。
B2 verb /ʃriːk/

shriek

叫ぶ
Meaning
to make a loud, high-pitched cry
Example
She shrieked when she saw the spider.
彼女はクモを見て叫んだ。