sail
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B1 verb /seɪl/

sail

帆を使って旅行する
Meaning
to travel on water in a boat or ship using sails or by wind power
Example
They sailed across the Atlantic Ocean last summer.
彼らは昨年の夏、アトランティックオーシャンを渡りました。
C1 noun /sɪlt/

silt

シルト
Meaning
Fine sand, clay, or other material carried by running water and deposited as a sediment.
Example
The river deposited layers of silt along its banks.
川はその岸にシルトの層を堆積させた。
B1 adjective /ˈspaɪ.si/

Spicy

スパイシー
Meaning
having a strong, hot flavor from spices; containing spices
Example
This curry is too spicy for me to eat.
このカレーは私には辛すぎます。
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 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 /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 noun /səˈspens/

Suspense

サスペンス
Meaning
a feeling of excited or anxious uncertainty about what will happen
Example
The movie kept us in suspense until the very end.
映画は最後まで私たちをサスペンスの中に保ちました。
B2 verb /soʊ/

sow

まく
Meaning
to plant seeds in the ground; to scatter seeds for growing
Example
The farmer will sow wheat seeds in the field tomorrow.
農家は明日、畑に小麦の種をまきます。
B2 noun/verb /swɑːmp/

swamp

湿地
Meaning
An area of low-lying, uncultivated ground where water collects; a bog or marsh.
Example
The village was built near a swamp.
村は湿地の近くに建てられました。
A2 adjective /ˈsʌðərn/

southern

南の
Meaning
located in or facing the south; southern regions
Example
She moved to a southern city for work.
彼女は仕事のために南の都市に引っ越した。
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 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。
A2 adjective /sɪksθ/

sixth

六番目
Meaning
coming after the fifth in order, position, or rank
Example
He finished the race in sixth place.
彼はレースで六番目に終わった。
B1 noun /ˈsɛkʃən/

section

セクション
Meaning
a distinct part or subdivision of something larger
Example
This section of the report needs further review.
この報告書のセクションは、さらに検討する必要があります。
A1 verb /stænd/

stand

立つ
Meaning
to be in an upright position; to tolerate or endure
Example
Please stand up when the teacher enters.
先生が入る時に立ってください。
B2 adjective /ˈʃæl.oʊ/

Shallow

浅い; 表面的; 知識の深さが欠けている
Meaning
not deep; superficial; lacking depth of knowledge
Example
The shallow water is perfect for children to play.
浅い水は子供たちが遊ぶのに最適です。
A2 noun /ˈsteɪʃən/

station

Meaning
a place where a particular service is provided, especially for transportation
Example
We arrived at the station just in time for the train.
B1 noun ˈstrʌk.tʃər

structure

構造
Meaning
The arrangement of and relations between the parts or elements of something complex.
Example
The structure is designed for safety and functionality.
構造は安全性と機能性のために設計されています。
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 adjective /ˈslɪpʃɒd/

slipshod

おおざっぱな, いい加減な
Meaning
done in a careless, sloppy, or untidy way
Example
The project failed due to slipshod planning.
計画が雑だったため、プロジェクトは失敗した。
C1 noun /ˈsuːtər/

suitor

求婚者
Meaning
a man who pursues a relationship with a woman, often with the intent to marry
Example
She had many suitors vying for her attention.
彼女には彼女の注意を争う求婚者がたくさんいた。
B2 verb /spɪn/

spin

回転する
Meaning
To turn around quickly or cause something to rotate
Example
The dancer began to spin gracefully on the stage.
ダンサーはステージで優雅に回転を始めました。
B2 noun /soʊl/

Sole

足の裏; 靴の底
Meaning
the bottom part of the foot; the bottom part of a shoe
Example
I have a blister on the sole of my foot.
私の足の裏に水ぶくれがあります。
B2 noun /ˈspɔːrtsmən/

sportsman

スポーツ選手
Meaning
A person who is skilled in sports or enjoys participating in athletic activities.
Example
He is a true sportsman, always fair and respectful to his opponents.
彼は本物のスポーツ選手で、常に相手に対して公正で尊敬を示す。
C2 noun səˈtaɪ.ə.ti

satiety

満腹感
Meaning
The feeling of being satisfied or full, especially with regard to food.
Example
High-fiber foods provide longer satiety.
高繊維食品はより長い満腹感を提供します。
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 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 adjective /ˈsɛnʃuəl/

sensual

官能的
Meaning
Relating to or involving gratification of the senses and physical pleasure.
Example
The painting had a sensual quality that captivated viewers.
その絵は視覚的な魅力があり、観客を魅了しました。
B1 verb /skriːm/

scream

叫ぶ
Meaning
to make a loud, high-pitched sound, usually because of fear, pain, or excitement
Example
She screamed when she saw the spider.
彼女はクモを見て叫びました。
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。
C2 noun /ˈʃʊərəti/

surety

保証人
Meaning
a person who takes responsibility for another's performance of an undertaking, such as appearing in court or paying a debt
Example
The landlord required a surety before renting the apartment.
家主はアパートを貸す前に保証人を要求しました。
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。
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。
B2 adjective /ˈstɜːrdi/

sturdy

頑丈
Meaning
strongly and solidly built; not easily weakened
Example
The carpenter made a sturdy wooden table.
大工は頑丈な木製のテーブルを作った。
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。
C1 verb /sluː/

slew

急に曲がる
Meaning
To turn or slide violently in a particular direction.
Example
The car slewed across the icy road.
車は凍った道路を滑っていった。
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。
B2 noun /ˈsliːpər/

sleeper

眠っている人；予想外に成功するもの
Meaning
a person or thing that sleeps; something that unexpectedly succeeds
Example
The movie turned out to be a real sleeper hit.
映画は予想外のヒットになった。
C1 verb /sɪˈdjuːs/

seduce

Meaning
to attract someone into doing something, especially something they might not normally do
Example
The advertisement was designed to seduce customers into buying luxury products.
A1 noun /saɪd/

side

側
Meaning
a position to the left or right of something
Example
The store is on the side of the road.
店は道路の側にあります。
A2 adjective /ˈselfɪʃ/

Selfish

利己的
Meaning
caring only about oneself rather than others
Example
He was too selfish to share his food with others.
彼は他の人と食べ物を共有するにはあまりにも自己中心的だった。
B2 noun /steɪn/

Stain

シミ; 汚れ
Meaning
a colored patch or dirty mark that is difficult to remove; a blemish or damage to reputation
Example
There was a coffee stain on his white shirt.
彼の白いシャツにはコーヒーのシミがありました。
B2 verb /ʃrʌɡ/

shrug

肩をすくめる
Meaning
To raise and lower the shoulders to express uncertainty or indifference.
Example
He shrugged when asked about the missing file.
彼は失われたファイルについて聞かれると肩をすくめました。
C1 adjective /səˈdʒɛstɪv/

suggestive

示唆的
Meaning
tending to suggest ideas or images; sometimes implies something sexual or provocative
Example
The painting was highly suggestive and sparked much debate.
その絵画は非常に示唆的で、たくさんの議論を引き起こしました。
C2 adjective /ˈspiːʃəs/

specious

見せかけの
Meaning
Superficially plausible but actually false; misleading in appearance.
Example
The politician’s argument was specious, sounding convincing but lacking real evidence.
その政治家の議論は見せかけのもので、説得力があるように見えたが、実際の証拠は欠けていた。
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 /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。
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。
C2 noun /spɪˈlʌŋkər/

spelunker

洞窟探検家
Meaning
A person who explores caves as a hobby.
Example
The spelunker carried ropes and lights into the dark cave.
洞窟探検家は暗い洞窟にロープとライトを持って行きました。
C2 noun /ˈʃɪbəˌlɛθ/

shibboleth

特定のグループを識別するための表現や信念
Meaning
A custom, phrase, or belief distinguishing a particular group of people, often used to identify outsiders.
Example
The phrase became a political shibboleth during the campaign.
そのフレーズはキャンペーン中に政治的なシボレスとなった。
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。
B2 noun, verb /stɛm/

stem

茎 / 食い止める
Meaning
Noun: The main stalk of a plant. Verb: To stop or restrict the flow or development of something.
Example
The gardener cut the stem of the rose; New policies aim to stem the flow of pollution.
庭師はバラの茎を切りました; 新しい政策は汚染の流れを食い止めることを目指しています。
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.
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。
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。
B2 noun /spaɪt/

spite

意地悪
Meaning
a desire to hurt, annoy, or offend someone
Example
She refused the gift out of spite.
彼女は意地悪で贈り物を拒否した。
A1 adjective /smɔːl/

Small

小さい; 限られた; 狭い
Meaning
little in size; not large; limited in extent or amount
Example
She lives in a small apartment near the university.
彼女は大学の近くの小さなアパートに住んでいます。
C1 adjective /ˈsek.j ə.l ər/

Secular

世俗的
Meaning
not connected with religious or spiritual matters; worldly
Example
The country maintains a secular government that separates religion from politics.
その国は宗教と政治を分離する世俗的な政府を維持している。
A1 adverb /ˈsʌm.taɪmz/

Sometimes

時々
Meaning
at times; occasionally; now and then
Example
Sometimes I go for a walk in the evening.
時々、私は夕方に散歩します。
B1 verb /ʃɪft/

shift

シフトする
Meaning
To move or change from one place, position, or situation to another.
Example
She had to shift her focus to the new project.
彼女は新しいプロジェクトに焦点を移さなければならなかった。
C1 adjective ˈsɛd(ə)ntəri

sedentary

座りっぱなしの
Meaning
Characterized by much sitting and little physical activity.
Example
A sedentary lifestyle can lead to numerous health problems.
座りっぱなしの生活は、多くの健康問題を引き起こす可能性がある。
C1 noun /stæɡˈneɪ.ʃən/

stagnation

停滞
Meaning
A state of inactivity or lack of growth, especially in an economy.
Example
High unemployment led to economic stagnation.
高い失業率が経済の停滞を引き起こしました。
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 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。
C1 verb /skwɪnt/

squint

目を細める
Meaning
to look with partly closed eyes
Example
She squinted at the bright sunlight.
彼女は明るい日差しで目を細めた。
C1 verb /səbˈsaɪd/

subside

収束する
Meaning
to become less intense, violent, or severe; to sink or fall to a lower level
Example
After the storm, the floodwaters began to subside.
嵐の後、洪水は収束し始めました。
C2 noun /ˈʃæd.ək/

Shaddock

ポメロ
Meaning
a large citrus fruit similar to grapefruit; pomelo
Example
The shaddock is the largest citrus fruit in the world.
シャドックは世界で最も大きな柑橘類の果物です。
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。
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。
C2 noun /səˈnɛs.əns/

senescence

老化
Meaning
The process of growing old or the condition of aging.
Example
The biologist studied senescence in plants to understand aging.
生物学者は植物のセネセンスを研究して、老化を理解しようとしました。
C1 adjective /ˈsɜːrvaɪl/ or /ˈsɜːrvəl/

servile

卑屈な
Meaning
having or showing an excessive willingness to serve or please others
Example
His servile attitude annoyed his colleagues.
彼の卑屈な態度は同僚を困らせていました。
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 /səkˈsɛsɪv/

Successive

連続的な; 連続した
Meaning
following one after the other in order; consecutive
Example
The team won three successive matches.
チームは三回連続して試合に勝ちました。
B2 noun /spaɪn/

Spine

背骨; 構造物の中央支柱
Meaning
the backbone or vertebral column of a vertebrate; the central support of a structure
Example
She injured her spine in the accident.
事故で背骨を傷つけました。
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 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。
B2 noun /ˈstɑːrt.ʌp/

startup

スタートアップ企業
Meaning
A newly established business, especially a small technology or business company that is just beginning operations.
Example
The startup secured funding from investors.
そのスタートアップは投資家から資金調達を受けました。
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 noun /ˈsɜːfdəm/

serfdom

農奴制
Meaning
The status or condition of being a serf, bound to work for a lord.
Example
Many peasants in medieval Europe lived under serfdom.
中世ヨーロッパの多くの農民は農奴制の下で生活していた。
B1 noun /seɪk/

Sake

目的; 理由;
Meaning
purpose or reason for doing something; benefit or interest
Example
She worked overtime for the sake of her family's future.
彼女は家族の未来のために残業しました。
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。
B1 noun /seɪnt/

Saint

聖人として認められた人物; とても親切で忍耐強い人物
Meaning
person recognized as holy or virtuous; very kind or patient person
Example
Mother Teresa was declared a saint by the Catholic Church.
マザー・テレサはカトリック教会によって聖人と宣言されました。
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。
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。
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。
B2 adjective/noun /staʊt/

stout

丈夫 / ぶ厚い
Meaning
Strong, thick, or heavily built; also a kind of dark beer
Example
The stout man lifted the heavy box with ease.
その丈夫な男性は重い箱を簡単に持ち上げました。
A2 noun /siːn/

scene

シーン
Meaning
a place or setting of an event or activity, or the part of a play or film
Example
The final scene of the movie was very emotional.
映画の最後のシーンはとても感動的でした。
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 verb /ʃʌv/

shove

押す
Meaning
to push someone or something roughly
Example
He shoved the box into the corner.
彼は箱を隅に押し込んだ。
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。
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 adjective /suːˈpɜːrlətɪv/

superlative

最上級
Meaning
Of the highest quality or degree; expressing the extreme form of an adjective or adverb.
Example
Her performance was superlative, earning her a standing ovation.
彼女のパフォーマンスは最上級で、スタンディングオベーションを受けました。
B2 noun /ˈspesɪmən/

Specimen

標本; 試料; サンプル
Meaning
an individual example of something; a sample collected for scientific study or testing
Example
The scientist collected a blood specimen for analysis.
科学者は分析のために血液の標本を集めました。
B1 adjective /ˈsplendɪd/

Splendid

素晴らしい; 壮大な; 印象的な
Meaning
magnificent; excellent; very impressive
Example
The castle looked splendid in the sunset.
お城は夕日で素晴らしく見えました。
B2 noun /ˈsoʊlər ɪˈklɪps/

Solar eclipse

日食
Meaning
an eclipse in which the sun is obscured by the moon passing between it and the earth
Example
The solar eclipse will be visible from our city next month.
来月、私たちの街から日食が見ることができます。
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 /ˈsɒfɪst/

sophist

詭弁家
Meaning
a person who uses clever but misleading arguments
Example
He was dismissed as a sophist who twisted facts to win debates.
彼は討論に勝つために事実を歪める詭弁家として解雇されました。
B2 noun /speɪd/

Spade

シャベル
Meaning
a tool with a flat blade for digging; a playing card suit
Example
The gardener used a spade to dig holes for planting flowers.
庭師は花を植えるために穴を掘るためにシャベルを使いました。
C1 noun /ˌsʌb.stɪˈtjuː.ʃən/

substitution

交換
Meaning
the action of replacing someone or something with another
Example
The substitution of the old system with the new one was difficult.
古いシステムを新しいシステムに置き換えることは難しかった。
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。
A2 adjective /sɪk/

Sick

病気の; 吐き気のする; 不調
Meaning
unwell; having a disease or illness; feeling nauseous
Example
She stayed home from work because she was feeling sick.
彼女は気分が悪かったので、仕事を休んだ。
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。
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 /ˈsweɪʒən/

suasion

説得
Meaning
the act of persuading or influencing someone
Example
The leader used gentle suasion to win support for the plan.
リーダーは計画への支援を得るために穏やかな説得を使用しました。
C1 noun /ˌsæl.ɪ.naɪˈzeɪ.ʃən/

salinization

塩分増加
Meaning
The process of increasing salt content in soil.
Example
Excessive irrigation can cause salinization of farmland.
過剰な灌漑は農地の塩分増加を引き起こす可能性があります。
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。
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。
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。
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。
B1 noun /ˈsʌp.ər/

Supper

晩ご飯
Meaning
an evening meal, typically a light or informal one
Example
We usually have supper around seven o'clock.
私たちは通常、七時ごろに晩ご飯を食べます。
B2 noun /ˈsʌ.plɪ.mənt/

Supplement

サプリメント
Meaning
something that completes or adds to something else; a dietary product
Example
She takes vitamin supplements to maintain her health.
彼女は健康を維持するためにビタミンサプリメントを摂取します。
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。
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。
A2 noun /steɪdʒ/

stage

ステージ
Meaning
a raised platform or area for performances or presentations
Example
The actor stepped onto the stage to deliver his speech.
俳優は演説をするためにステージに上がった。
B2 verb /ˈskrɪbəl/

scribble

落書きする
Meaning
to write or draw carelessly or quickly
Example
The child scribbled all over the wall.
子供は壁に落書きをした。
A2 verb /səˈpɔːrt/

support

サポートする
Meaning
to help or assist someone; to hold up or bear the weight of something
Example
The family will support their son through his studies.
家族は息子を学業でサポートします。
C1 adjective /ˈsɪnləs/

Sinless

無罪; 無邪気; 純粋
Meaning
free from sin; pure and innocent; without moral fault
Example
The innocent child appeared sinless in her pure white dress.
無邪気な子供は純白のドレスで罪のないように見えた。
C1 noun /ˈstɛə.rɪ.əʊˌtaɪ.pɪŋ/

stereotyping

ステレオタイプ
Meaning
A widely held but fixed and oversimplified image or idea of a particular type of person or thing.
Example
Stereotyping people based on their race is harmful.
人種に基づいたステレオタイプは有害です。
C1 noun /ˈspɪnstər/

spinster

未婚女性
Meaning
An unmarried woman, often one who is older and considered unlikely to marry
Example
The novel featured a kind-hearted spinster who cared for the village children.
その小説には、村の子供たちの世話をしていた心優しい未婚女性が登場した。
B2 verb /səbˈmɪt/

submit

提出する
Meaning
to present for consideration; to surrender; to yield
Example
Please submit your assignment by Friday.
金曜日までに課題を提出してください。
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。