simian
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C2 adjective /ˈsɪmiən/

simian

類人猿の
Meaning
Relating to, resembling, or affecting apes or monkeys.
Example
The scientist studied the simian behavior of the chimpanzees.
科学者はチンパンジーの類人猿の行動を研究した。
C2 noun /ˈskɪnˌflɪnt/

skinflint

けちん坊
Meaning
a person who spends as little money as possible; a miser
Example
The landlord was such a skinflint that he never repaired anything.
家主はそんなけちん坊で、何も修理しなかった。
C2 noun /ˌskʌlˈdʌɡəri/

skullduggery

不正行為
Meaning
dishonest behavior or activities, often done secretly
Example
The election was full of political skullduggery.
選挙は政治的不正行為に満ちていた。
C2 adjective /ˈsuːpaɪn/

supine

仰向けで横たわる
Meaning
Lying on the back, face upward; failing to act due to laziness or weakness.
Example
He lay supine on the grass, staring at the stars.
彼は草の上に仰向けで横たわり、星を見ていた。
C2 adjective /ˈsɪnjuːi/

sinewy

筋肉質で強い
Meaning
Lean and muscular; strong and tough.
Example
The athlete had a sinewy build that showed his strength.
そのアスリートは筋肉質な体型をしており、力強さを示していた。
C2 noun /sɪˈkwiːlə/

sequela

後遺症
Meaning
A condition that is the consequence of a previous disease or injury.
Example
Lung scarring can be a sequela of severe pneumonia.
肺の瘢痕は重度の肺炎の後遺症である可能性があります。
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。
C2 adjective /sɒmˈnɪfərəs/

somniferous

眠気を引き起こす
Meaning
Tending to induce sleep; soporific.
Example
The professor's somniferous lecture put half the class to sleep.
教授のソムニフェラスな講義はクラスの半分を眠らせた。
C2 noun /ˈsætræp/

satrap

総督
Meaning
a governor of a province in ancient Persia; also used figuratively for a subordinate ruler
Example
The king appointed a satrap to oversee the distant province.
王は遠くの州を監督するために総督を任命しました。
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。
C2 adjective /ˈsiːmi/

seamy

低劣な、陰湿な
Meaning
Morally degraded, unpleasant, or sordid.
Example
The novel reveals the seamy side of city life.
その小説は都市生活の裏面を明らかにします。
C2 verb /skwɛltʃ/

squelch

Meaning
to make a soft sucking sound, such as when walking on mud; to suppress or silence
Example
His boots squelched in the wet ground.
C2 adjective /ˈsʌpliənt/

suppliant

請願者
Meaning
Humbly or earnestly asking for something, especially from a person in authority.
Example
The suppliant man begged for mercy at the king's feet.
請願者は王の足元で慈悲を乞いました。
C2 adjective /ˌsuːprəˈmʌndeɪn/

supramundane

超俗的
Meaning
beyond the physical or ordinary world; transcendent
Example
The monk spoke of supramundane peace beyond material life.
僧侶は物質的な生活を超えた超俗的な平和について話しました。
C2 noun /ˈʃaɪstər/

shyster

詐欺師
Meaning
a person, especially a lawyer, who uses unscrupulous or dishonest methods
Example
The businessman was exposed as a shyster who cheated clients.
そのビジネスマンは、顧客を騙す詐欺師として暴露されました。
C2 verb /ˈstɪp.əl/

stipple

小さな点で覆う
Meaning
to cover a surface with numerous small dots or specks, often in drawing or painting
Example
The artist stippled the canvas to create a textured effect.
アーティストはキャンバスに小さな点をつけて、テクスチャ効果を作り出しました。
C2 noun /ˈsɪʒ.ən/

scission

分裂
Meaning
the act of cutting or dividing something
Example
The political party suffered a scission over ideological disputes.
その政党はイデオロギーの対立により分裂を経験しました。
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。
C2 noun /sælv/

salve

薬
Meaning
An ointment used to promote healing of the skin or as protection.
Example
She applied a salve to the burn on her hand.
彼女は手のやけどに薬を塗りました。
C2 noun /ˈsuːθˌseɪər/

soothsayer

占い師
Meaning
a person who claims to predict the future
Example
The king consulted a soothsayer before going to war.
王は戦争に行く前に占い師に相談した。
C2 adjective /stɛnˈtɔːriən/

stentorian

雷鳴のような
Meaning
Extremely loud and powerful in sound.
Example
The teacher’s stentorian voice quieted the noisy classroom.
教師の雷鳴のような声が騒々しい教室を静めた。
C2 verb /səˈbɔːrn/

suborn

買収する
Meaning
to bribe or induce someone unlawfully to perform an act, especially to commit perjury
Example
The lawyer was accused of trying to suborn a witness.
弁護士は証人を買収しようとしたと非難された。
C2 noun /spliːn/

spleen

脾臓; 怒り
Meaning
an organ in the body that produces lymphocytes and filters blood; also refers to bad temper or spite
Example
He vented his spleen on his coworkers after the meeting.
会議後、彼は同僚に対して怒りをぶつけました。
C2 noun /slaɪt/

sleight

手品
Meaning
Skill or dexterity, especially in performing tricks.
Example
The magician amazed the crowd with his sleight of hand.
マジシャンはその手品で観客を驚かせた。
C2 noun /ˈsuːpsɒ̃/

soupcon

少量
Meaning
a very small quantity of something; a trace
Example
She added just a soupcon of spice to the dish.
彼女は料理にほんの少しスパイスを加えた。
C2 adjective /ˈʃɑːpwɔːrn/

shopworn

古くなった / 色あせた
Meaning
worn or faded from being displayed in a shop; no longer fresh or original
Example
The shopworn shoes were sold at a discount.
ショッピングワーンの靴は割引価格で販売されました。
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 noun /spjuːm/

spume

泡
Meaning
Froth or foam, especially found on waves or liquids.
Example
The waves crashed against the rocks, leaving spume in the air.
波が岩にぶつかり、空気中に泡を残した。
C2 noun /skæd/

scad

スカッド魚
Meaning
A type of fish of the jack family; also informally means a large number or quantity.
Example
The fisherman caught a scad in the net.
漁師は網でスカッドを捕まえました。
C2 noun /səbˈsɜːviəns/

subservience

従順
Meaning
the condition of being too willing to obey or serve others
Example
His subservience to authority annoyed his colleagues.
権威への従順さが同僚たちを苛立たせた。
C2 noun /spʌndʒ ɡɔːrd/

Sponse gourd

スポンジカボチャ
Meaning
a fibrous gourd that becomes sponge-like when dried, used for cleaning and in cooking when young
Example
The sponge gourd can be eaten when young or dried to make natural scrubbers.
スポンジカボチャは若い時に食べることができるか、乾燥させて自然のスポンジを作ることができます。
C2 adjective /səˈdʒɛstəbəl/

suggestible

影響されやすい
Meaning
easily influenced by the suggestions of others
Example
Children are highly suggestible and may believe what they are told.
子供たちは非常に影響されやすく、言われたことを信じるかもしれません。
C2 adjective /sɪˈlæbɪk/

syllabic

音節の
Meaning
Relating to or based on syllables.
Example
The teacher explained the syllabic structure of the word.
先生はその言葉の音節構造を説明しました。
C2 noun /ˈsɪŋkrəˌnɪzəm/

synchronism

シンクロニズム
Meaning
The simultaneous occurrence of events or actions.
Example
The synchronism of the dancers' movements amazed the audience.
ダンサーの動きのシンクロニズムは観客を驚かせました。
C2 verb /ˈstjuːpɪˌfaɪ/

stupefy

驚かす
Meaning
to make someone unable to think clearly, usually because of surprise or shock
Example
The magician's tricks stupefied the audience.
マジシャンのトリックは観客を驚かせた。
C2 noun ˈsɒmnələns

somnolence

眠気
Meaning
A state of drowsiness or sleepiness; inclination to sleep.
Example
The somnolence after a heavy meal made it hard to concentrate.
重い食事の後、眠気が集中するのを難しくしました。
C2 noun /sɒl/

sol

ソル（音楽のスケールの5番目の音）
Meaning
The fifth note of the sol-fa musical scale (do, re, mi, fa, sol, la, ti); also the Latin word for sun
Example
The choir practiced singing the note sol during rehearsal.
合唱団はリハーサル中にソル音を歌う練習をしました。
C2 adjective /ˈsɛrid/

serried

整列した
Meaning
pressed or crowded together, often in rows or ranks
Example
The soldiers stood in serried ranks, ready for inspection.
兵士たちは整列した行列で立って、点検の準備ができていました。
C2 noun (plural, informal) /skædz/

scads

たくさん
Meaning
A large number or quantity of something (informal).
Example
She has scads of friends in the city.
彼女は街にたくさんの友達がいます。
C2 adjective /sɛpˈtɛnɪəl/

septennial

7年ごとの
Meaning
Occurring every seven years.
Example
The festival is a septennial tradition in the village.
その祭りは村で7年ごとの伝統です。
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

シンクロニシティ
Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
彼らの思考のシンクロニシティは皆を驚かせました。
C2 noun /ˈʃɑːdənfrɔɪdə/

schadenfreude

他人の不幸を喜ぶこと
Meaning
pleasure derived from another person's misfortune
Example
He felt a sense of schadenfreude when his rival failed.
ライバルが失敗したとき、彼はシャーデンフロイデを感じた。
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 noun /sɒp/

sop

Meaning
a concession or appeasement to pacify someone; also a piece of bread dipped in liquid
Example
The manager offered a bonus as a sop to the unhappy employees.
C2 verb /sɪˈkwɛstreɪt/

sequestrate

差し押さえる
Meaning
To take legal possession of assets until a debt is paid or disputes are resolved.
Example
The court decided to sequestrate the company's property.
裁判所は会社の財産を差し押さえることを決定しました。
C2 noun /ˈsɛm.ɪ.nɛr.i/

seminary

神学校
Meaning
A school or college for training priests, ministers, or rabbis.
Example
He decided to enroll in a seminary to study theology.
彼は神学校に入学して神学を学ぶことに決めました。
C2 noun /ˈswɑːvɪti/

suavity

優雅さと魅力
Meaning
smoothness and charm in manner
Example
His suavity made him popular in social gatherings.
彼の優雅さと魅力は社交の場で彼を人気者にした。
C2 verb /skʌlk/

skulk

Meaning
to move or hide secretly, often because you are planning something bad or are feeling guilty
Example
He tried to skulk in the shadows to avoid being seen.
C2 noun /ˈsʌplɪkənt/

supplicant

請願者
Meaning
A person who humbly or earnestly asks for something, usually from a person of authority.
Example
The temple was filled with supplicants seeking blessings.
寺院には祝福を求める請願者で溢れていました。
C2 noun /sfɪˈrɒmɪtər/

spherometer

球面測定器
Meaning
An instrument used for measuring the curvature of spherical surfaces.
Example
The scientist used a spherometer to measure the lens curvature.
科学者はレンズの曲率を測定するためにスフェロメーターを使用しました。
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。
C2 adjective /ˈstɜːr.tər.əs/

stertorous

重いいびき
Meaning
Characterized by heavy snoring or breathing.
Example
The patient’s stertorous breathing alarmed the nurses.
患者のステルトラスな呼吸は看護師たちを驚かせました。
C2 noun /ˈslæt.ən/

slattern

だらしない女性
Meaning
a woman who is untidy or slovenly in appearance or habits
Example
The house looked as if a slattern lived there.
その家は、だらしない女性が住んでいるように見えた。
C2 adjective /sɪˈkweɪʃəs/

sequacious

盲目的に従う
Meaning
Lacking independence of thought; blindly following.
Example
The sequacious students never questioned their teacher's opinions.
シクウェイシャスな学生は、教師の意見に疑問を呈することはありませんでした。
C2 adjective /səˈɡeɪ.ʃəs/

sagacious

賢明
Meaning
Having or showing keen mental discernment and good judgment; wise.
Example
His sagacious leadership saved the company from failure.
彼の賢明なリーダーシップは会社を失敗から救った。
C2 noun /staɪn/

stein

ビールジョッキ
Meaning
A large beer mug, typically made of glass or stoneware.
Example
He raised his stein to toast his friends.
彼は友達のために乾杯するためにシュタインを持ち上げました。
C2 adjective /ˈsɪbɪlənt/

sibilant

シーシー音がする
Meaning
Making or characterized by a hissing sound.
Example
The word 'snake' starts with a sibilant sound.
'snake' という単語はシビラント音で始まります。
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。
C2 noun /ˈsɪnəd/

synod

シノド
Meaning
An assembly of the clergy in a Christian church convened to decide on issues of doctrine or administration.
Example
The synod gathered to discuss reforms in the church.
シノドは教会での改革について議論するために集まった。
C2 verb /sweɪð/

swathe

Meaning
To wrap or cover closely or completely.
Example
She swathed the baby in a soft blanket.
C2 noun /ˈsaɪz.mə.ɡræf/

seismograph

地震計
Meaning
An instrument that measures and records details of earthquakes, such as force and duration.
Example
The seismograph detected a strong tremor in the area.
地震計はその地域で強い揺れを検出しました。
C2 adjective /ˈstɒlɪd/

stolid

冷静な、無表情な
Meaning
Calm, dependable, and showing little emotion or animation.
Example
Despite the chaos around him, he remained stolid and composed.
周りの混乱にもかかわらず、彼は冷静で落ち着いていました。
C2 noun /ˈsɪŋ.krə.ni/

synchrony

シンクロニシティ
Meaning
Coordination in time, harmony in action or movement.
Example
Their dance performance showed perfect synchrony.
彼らのダンスパフォーマンスは完璧なシンクロニシティを示しました。
C2 noun /ˈstrɪplɪŋ/

stripling

若者
Meaning
a young man who is not yet fully grown
Example
The stripling dreamed of becoming a brave knight.
その若者は勇敢な騎士になることを夢見ていた。
C2 noun /sɛnˈsɔːrɪəm/

sensorium

感覚中枢
Meaning
The part of the brain or mind concerned with the reception and interpretation of sensory stimuli.
Example
The patient’s sensorium was clouded after the accident.
事故後、患者の感覚中枢はぼやけていた。
C2 noun /ˈskʌl.i.ən/

scullion

台所の使用人
Meaning
a servant assigned the most menial kitchen tasks
Example
In medieval times, a scullion was responsible for cleaning pots and pans.
中世の時代、スカリオンは鍋やフライパンを掃除する責任がありました。
C2 noun/verb /ˈsoʊdʒɜrn/

sojourn

一時的な滞在
Meaning
A temporary stay at a place; to stay temporarily
Example
She enjoyed a brief sojourn in Paris during the summer.
彼女は夏の間、パリで短期間の滞在を楽しんだ。
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。
C2 verb /ʃʌk/

shuck

殻を剥く
Meaning
To remove the outer covering, such as the husk of corn or shell of shellfish.
Example
She learned how to shuck oysters quickly.
彼女は牡蠣の殻を素早く剥く方法を学びました。
C2 noun /sɪnˈtɪl.ə/

scintilla

小さな火花
Meaning
A tiny trace or spark of a specified quality or feeling.
Example
There wasn’t a scintilla of doubt in her mind.
彼女の心には疑いのひらめきもなかった。
C2 noun /ˈskɪz.əm/ or /ˈsɪz.əm/

schism

幸福
Meaning
A division or split between strongly opposed parties, often in religion or organizations.
Example
The schism in the church led to the formation of two separate groups.
彼女は賞を受け取ったとき、幸せを隠せませんでした。
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。
C2 noun /strəˈmoʊ.ni.əm ˌflaʊ.ər/

Stramonium flower

ジムソンウィードの花
Meaning
A trumpet-shaped white or purple flower from the jimsonweed plant, known for its toxic properties
Example
The stramonium flower blooms at night with a sweet fragrance.
ジムソンウィードの花は夜に咲き、甘い香りを放ちます。
C2 noun /ˈseɪ.li.əns/

salience

顕著性
Meaning
The quality of being particularly noticeable or important; prominence.
Example
The salience of the issue was highlighted in the debate.
その問題の顕著性は討論で強調されました。
C2 noun /sɪˈmɪlɪtjuːd/

Similitude

類似性; 類似
Meaning
the quality or state of being similar; resemblance
Example
The similitude between the two paintings suggested they were by the same artist.
2つの絵の間の類似性は、それらが同じアーティストによって描かれたことを示唆していました。
C2 verb /swɪl/

swill

がぶがぶ飲む
Meaning
to drink something greedily or in large amounts
Example
He swilled down the beer in seconds.
彼は数秒でビールを飲み干した。
C2 adjective /spæzˈmɒdɪk/

spasmodic

痙攣性
Meaning
occurring irregularly or in sudden bursts
Example
The patient experienced spasmodic coughing during the night.
患者は夜間に痙攣性の咳を経験しました。
C2 adjective /ˈstraɪ.eɪ.tɪd/

striated

縞目模様の
Meaning
marked with thin lines, grooves, or stripes
Example
The muscle fibers appeared striated under the microscope.
顕微鏡で筋肉の繊維が縞目模様のように見えました。
C2 noun /ˈsʊrmə fɪʃ/

Surma fish

スルマ魚
Meaning
a freshwater fish species found in the Surma river system of Bangladesh and northeastern India
Example
Surma fish is native to the rivers of Sylhet region.
スルマ魚はシレット地域の川に生息しています。
C2 noun /ˈsɪlədʒɪzəm/

syllogism

三段論法
Meaning
A form of reasoning in which a conclusion is drawn from two given or assumed premises.
Example
The philosopher explained the concept of syllogism using simple examples.
哲学者は簡単な例を使って三段論法の概念を説明しました。
C2 adjective /ˈslæp.dæʃ/

slapdash

ぞんざい
Meaning
done too quickly and carelessly; hasty and careless
Example
The report was written in a slapdash manner, full of errors.
レポートはぞんざいに書かれており、間違いだらけだった。
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。
C2 noun /ˈspɒt.ɪd sneɪk hed/

Spotted snake head

カムルチー
Meaning
a type of freshwater fish with spotted markings and an elongated head resembling a snake
Example
The spotted snake head is a popular fish for aquaculture in South Asia.
カムルチーは南アジアで人気のある養殖魚です。
C2 verb /səbˈsjuːm/

subsume

含む
Meaning
To include or absorb something into a larger group or category.
Example
Minor details were subsumed under the main topic.
マイナーな詳細は主要なトピックに含まれました。
C2 adjective, noun /səbˈmɜːrsəbl/

submersible

潜水艇
Meaning
capable of being submerged; a small underwater craft
Example
The scientists explored the deep ocean using a submersible.
科学者たちは潜水艇を使って深海を探査した。
C2 adjective /sɛnˈtɛnʃəs/

sententious

道徳的な; 道徳的に説教する
Meaning
Given to moralizing in a pompous or affected manner.
Example
His sententious remarks annoyed the audience.
彼の道徳的なコメントは観客をイライラさせた。
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。
C2 adjective /ˌstætʃuˈɛsk/

statuesque

彫像のような
Meaning
Having the grace, beauty, or dignity of a statue; tall and attractively proportioned.
Example
She had a statuesque figure that turned heads wherever she went.
彼女は彫像のような体型をしていて、どこに行っても人々の視線を引きつけていた。
C2 noun /ˈsɛpəlˌtʃər/

Sepulture

墓; 埋葬;
Meaning
the act of burying a dead body; burial; a grave or tomb
Example
The ancient king's sepulture was discovered by archaeologists.
古代の王のセパルチャーは考古学者によって発見されました。
C2 noun /ˌsɪləbɪˈkeɪʃən/

syllabication

音節分け
Meaning
The division of words into syllables.
Example
Proper syllabication helps in correct pronunciation.
適切な音節分けは正しい発音に役立ちます。
C2 adjective /ˌsʌb.əˈkwɒt.ɪk/

subaquatic

水中
Meaning
Existing, living, or located under water.
Example
Divers explored the subaquatic cave system filled with rare fish.
ダイバーたちは珍しい魚でいっぱいの水中洞窟システムを探査しました。
C2 noun /ˌsuː.pɚˈfluː.ə.t̬i/

superfluity

過剰
Meaning
An excessive amount of something; more than what is needed.
Example
The room was filled with a superfluity of decorations.
部屋は装飾で過剰に満たされていました。
C2 noun /ˌʃæŋɡriˈlɑː/

shangri-la

架空の楽園
Meaning
a remote, beautiful, imaginary place where life is perfect and peaceful
Example
They described the island as a modern-day Shangri-La.
彼らはその島を現代版シャングリ・ラとして描写しました。
C2 verb /sɛkˈstuːpəl/

sextuple

セクストゥプル
Meaning
to make or become six times as great or as many
Example
Within two quarters, the campaign sextupled their daily sign-ups.
2つの四半期で、キャンペーンは毎日のサインアップ数を6倍にしました。
C2 verb /ˈstʌltɪfaɪ/

stultify

愚かに見せる、または効果や熱意を妨げる
Meaning
to make someone or something appear foolish, or to hinder effectiveness and enthusiasm
Example
The repetitive tasks seemed to stultify the workers' creativity.
繰り返しの仕事が労働者の創造性を鈍らせているようだった。
C2 noun /ˌspoʊliˈeɪʃən/

spoliation

破壊
Meaning
The act of destroying or ruining something, often evidence or property.
Example
The court punished the company for the spoliation of evidence.
裁判所は証拠の破壊のために会社を罰しました。
C2 adjective ˌsʌr.əpˈtɪʃ.əs

surreptitious

秘密の
Meaning
Kept secret, especially because it would not be approved of; done stealthily.
Example
She took a surreptitious glance at his notes.
彼女は彼のノートをひそかに覗き見た。
C2 adjective /ˈsed.j ə.l ə s/

Sedulous

勤勉な; 立派な;
Meaning
showing dedication and diligence; persistent and careful in work
Example
She was sedulous in her research, spending hours in the library every day.
彼女は研究に勤勉で、毎日図書館で何時間も過ごしていました。
C2 noun /sɛkˈstɛt/

sextet

六重奏
Meaning
a group of six people playing music or a piece written for six performers
Example
The jazz sextet filled the small club with a warm, layered sound.
ジャズのセクステットは、小さなクラブを温かく層状の音で満たしました。
C2 noun /sɜːrˈsiːs/

surcease

停止
Meaning
a temporary or final ending or stopping of something
Example
The noise finally came to a surcease after midnight.
騒音は真夜中を過ぎて最終的に停止しました。
C2 noun /sʌbˈɔːl.tən/

subaltern

下級の立場にある人；軍隊では、若い将校
Meaning
A person holding a subordinate position; in the military, a junior officer.
Example
The subaltern was responsible for leading a small platoon of soldiers.
サブオルターナは小さな小隊を指揮する責任がありました。
C2 noun /ˈsteɪtkraft/

statecraft

国政術
Meaning
The art of governing and managing state affairs effectively.
Example
The leader was praised for his exceptional statecraft in handling international relations.
リーダーは国際関係を扱う際の卓越した国政術に対して称賛されました。
C2 noun /ˈsɪnjuː/

sinew

腱
Meaning
A tendon; figuratively, the source of strength, power, or resilience.
Example
The sinews in his arms stood out as he lifted the heavy box.
重い箱を持ち上げると、彼の腕の腱が目立ちました。
C2 adjective /sɪˈnɜːrdʒɪk/

synergic

シナジック
Meaning
Working together in a cooperative and effective manner.
Example
The two departments have a synergic relationship that boosts productivity.
2つの部署は生産性を高めるシナジックな関係を持っています。
C2 adjective səˈluː.bri.əs

salubrious

健康的
Meaning
Health-giving; healthy; promoting health and well-being.
Example
The mountain air is salubrious and refreshing.
山の空気は健康的でさわやかです。
C2 noun /ˈsɛpəlkər/

sepulcher

墓室
Meaning
A small room or monument, cut in rock or built of stone, in which a dead person is buried.
Example
The ancient king was laid to rest in a grand sepulcher.
古代の王は大きな墓室に埋葬されました。
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 /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 adverb /ˌsʌb ˈroʊzə/

sub rosa

秘密裏に
Meaning
secretly, in confidence, or in private
Example
The deal was made sub rosa to avoid public scrutiny.
取引はサブ ローザで行われ、公衆の監視を避けるためでした。
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 verb /ˌsuːpərɪnˈtɛnd/

superintend

監督する
Meaning
to oversee and direct the work or operation of something
Example
She was hired to superintend the construction project.
彼女は建設プロジェクトを監督するために雇われました。
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。
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。
C2 noun /sɪˈrɒkoʊ/

sirocco

熱く乾燥した風
Meaning
A hot, dry wind blowing from North Africa across the Mediterranean to southern Europe.
Example
The sirocco made the city unbearably hot and dusty.
シロッコは街を耐えられないほど暑く、ほこりっぽくした。
C2 adjective /ˈskʌr.ɪ.ləs/

scurrilous

中傷的な
Meaning
Using or expressed in coarse, abusive, or slanderous language.
Example
The politician faced criticism for his scurrilous remarks about his opponent.
その政治家は対立候補についての中傷的な発言で批判を浴びた。
C2 adjective /ˈsiːkwənt/

sequent

次の
Meaning
Following in order or as a result.
Example
The sequent events changed the course of history.
次の出来事は歴史の流れを変えました。
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。
C2 adjective /səˈluːtəˌtɔri/

salutatory

歓迎の挨拶
Meaning
Relating to or expressing a greeting or an address, especially at the beginning of a speech.
Example
She delivered a salutatory address at the graduation ceremony.
彼女は卒業式で歓迎の挨拶を行いました。
C2 adjective /ˌseɪpiˈɛnʃəl/

sapiential

知恵に関連する
Meaning
Relating to wisdom or knowledge, often in a religious or philosophical sense.
Example
The monk shared sapiential teachings with his students.
僧侶は学生たちに知恵に関連する教えを共有しました。
C2 noun /skɪf/

skiff

小舟
Meaning
a small, light boat usually for one person
Example
The fisherman paddled his skiff across the lake.
漁師は彼の小舟で湖を渡った。
C2 noun /səˈɡæs.ə.t̬i/

sagacity

深い知恵
Meaning
The quality of being sagacious; having or showing keen mental discernment and good judgment.
Example
His sagacity made him a great leader.
彼のサガシティは彼を偉大なリーダーにしました。