語彙集

英単語辞書 | 単語の意味、定義、例文

Rival definition card — visual illustration of the meaning
noun, verb B2
/ˈraɪvəl/
ライバル (raibaru)

a person or thing competing with another for the same goal or superiority in the same field

"The two companies are fierce rivals in the smartphone market."

"二つの企業はスマートフォン市場で激しいライバルです。" (Futatsu no kigyo wa sumātofon shijō de hageshī raibaru desu.)
Rivalry definition card — visual illustration of the meaning
noun B2
/ˈraɪvəlri/
ライバル関係; 競争 (raibaru kankei; kyousou)

competition for the same objective or for superiority in the same field; the state of being rivals

"The rivalry between the two teams made the match exciting."

"二つのチーム間のライバル関係が試合を興奮させた。" (Futatsu no chīmu-kan no raibaru kankei ga shiai o kōfun saseta.)
roam definition card — visual illustration of the meaning
verb B2
/roʊm/
歩き回る (arukimawaru)

to walk or travel without a specific destination; to wander

"Wild animals roam freely in the forest."

"野生動物は森の中を自由に歩き回っています。" (Yasei doubutsu wa mori no naka wo jiyuu ni arukimawatteimasu.)
Roast definition card — visual illustration of the meaning
noun B2
/roʊst/
ロースト肉 (roosuto niku)

Meat cooked by dry heat in an oven or over an open fire

"The Sunday roast was perfectly cooked and very tender."

"日曜日のローストは完璧に調理され、とても柔らかかった。" (Nichiyoobi no roosuto wa kanpeki ni chori sare, totemo yawarakakatta)
Roasted meat definition card — visual illustration of the meaning
noun B2
/ˈroʊstɪd miːt/
ロースト肉 (roosuto niku)

meat cooked by dry heat in an oven or over fire

"The roasted meat was perfectly seasoned and tender."

"ロースト肉は完璧に調味され、柔らかかった。" (Roosuto niku wa kanpeki ni choumi sare, yawarakakatta.)
robber definition card — visual illustration of the meaning
noun B2
/ˈrɒbər/
強盗 (goutou)

a person who steals property from others, often using force or threat

"The robber was caught after a quick police chase."

"素早い警察の追跡の後、強盗は捕まった。" (Subayai keisatsu no tsuiseki no ato, goutou wa tsukamatta)
robbery definition card — visual illustration of the meaning
noun B2
/ˈrɒbəɹi/
強盗 (gōtō)

the crime of stealing from someone or somewhere using force or threat

"The police are investigating the robbery at the local store."

"警察は地元の店での強盗事件を調査しています。" (Keisatsu wa jimoto no mise de no gōtō jiken o chōsa shiteimasu.)
robust definition card — visual illustration of the meaning
adjective B2
/roʊˈbʌst/
丈夫 (jōbu)

strong and healthy; able to withstand or overcome adverse conditions

"The company needs a robust strategy to survive in tough markets."

"その会社は厳しい市場で生き残るために丈夫な戦略が必要です。" (Sono kaisha wa kibishī shijō de ikinokoru tame ni jōbu na senryaku ga hitsuyō desu.)
adjective B2
/ˈrɑː.ki/
岩だらけの; 不安定な; 難しい (iwa darake no; fuantei na; muzukashī)

full of rocks; unsteady; difficult

"The rocky path made hiking difficult for the tourists."

"岩だらけの道は観光客のハイキングを難しくしました。" (Iwa darake no michi wa kankōkyaku no haikingu o muzukashiku shimashita.)
rod definition card — visual illustration of the meaning
noun B2
/rɒd/
金属または木材の細長い棒 (kinzoku mata wa mokuzai no hosonagai bō)

a thin straight bar, especially of metal or wood

"He used an iron rod to support the structure."

"彼は構造を支えるために鉄のロッドを使いました。" (Kare wa kōzō o sasaeru tame ni tetsu no roddo o tsukaimashita.)
rolling definition card — visual illustration of the meaning
adjective B2
/ˈroʊlɪŋ/
転がる (korogaru)

moving in gentle undulations; moving forward by turning over and over

"They drove through the rolling hills of the countryside."

"彼らは田舎の転がる丘を通り抜けました。" (Karera wa inaka no korogaru oka o toorinukemashita.)
Rolling pin definition card — visual illustration of the meaning
noun B2
/ˈroʊ.lɪŋ pɪn/
めん棒 (menbou)

a cylindrical tool used for rolling out dough or pastry

"Roll the dough flat with a rolling pin."

"めん棒で生地を広げてください。" (Menbō de kiji o hirogete kudasai.)
rookie definition card — visual illustration of the meaning
noun B2
/ˈrʊki/
初心者 (shoshinsha)

a person who is new to an activity or organization; a beginner

"The rookie policeman made a few mistakes on his first day."

"新米警官は初日にいくつかのミスを犯しました。" (Shinmai keikan wa shonichi ni ikutsu ka no misu o okashimashita.)
adjective B2
/ˈruː.mi/
広々とした; 広いスペースのある (hirobito shita; hiroi supēsu no aru)

spacious; having a lot of room

"The apartment is very roomy with spacious bedrooms."

"アパートメントは広々としており、広いベッドルームがあります。" (Apātomento wa hirobito toshite ori, hiroi beddo rūmu ga arimasu.)
noun B2
/ˈruːstər/
雄鶏 (ondori)

A male domestic chicken, especially one that crows.

"The rooster crowed at dawn, waking up the whole village."

"雄鶏は夜明けに鳴き、村全体を起こした。" (Ondori wa yoake ni naki, mura zentai o okoshita.)
adjective B2
/ˈruː.tɪd/
根付いた (ruutiddo)

deeply established; firmly fixed

"His beliefs are deeply rooted in tradition."

"彼の信念は伝統に深く根ざしている。" (Kare no shinnen wa dentou ni fukaku nezashite iru.)
rot definition card — visual illustration of the meaning
verb B2
/rɒt/
腐る (kuzuru)

to decay or decompose; to become corrupt

"The fruit will rot if left in the sun."

"果物は日光に当たると腐ります。" (Kudamono wa nikkou ni ataru to kusarimasu)
rotate definition card — visual illustration of the meaning
verb B2
/ˈroʊ.teɪt/
回転する (kaiten suru)

to turn around a central point or axis

"The Earth rotates on its axis once every 24 hours."

"地球は24時間ごとに自転します。" (Chikyū wa 24 jikan goto ni jiten shimasu.)
Rotation definition card — visual illustration of the meaning
noun B2
/rəʊˈteɪʃən/
回転 (kaiten)

the action of rotating or turning something around a center or axis

"The rotation of the earth around the sun causes seasons."

"地球の太陽の周りの回転は季節を引き起こします。" (Chikyū no taiyō no mawari no kaiten wa kisetsu o hikiokoshimasu.)
adjective B2
/ˈrɒt.ən/
腐った; 悪い (kusatta; warui)

decayed; spoiled; bad

"The apple is rotten and should be thrown away."

"リンゴは腐っていて、捨てるべきです。" (Ringo wa kusatte ite, suteru beki desu.)
routinely definition card — visual illustration of the meaning
adverb B2
/ruːˈtiːnli/
定期的に (teikiteki ni)

as part of a regular procedure; habitually

"The staff routinely checks the equipment for safety."

"スタッフは定期的に安全のために機器を点検します。" (Sutaffu wa teikiteki ni anzen no tame ni kiki o tenken shimasu.)
noun B2
/ˈrɔɪəlti/
王族 / ロイヤリティ (著者の収入) (royalty)

Members of a royal family or payment made to the owner of a patent, copyright, or natural resource.

"The author receives a royalty for every book sold."

"著者は売れた本ごとにロイヤリティを受け取ります。" (Chosha wa ureta hon goto ni roiyarityo o uketorimasu.)
Rudeness definition card — visual illustration of the meaning
noun B2
/ˈruːdnəs/
無礼 (ru-do-nesu)

the quality of being impolite, discourteous, or offensive in behavior or speech

"His rudeness shocked everyone at the dinner party."

"彼の無礼さはディナーパーティーで皆を驚かせました。" (Kare no burei-sa wa dinā pāti de mina o odorokasemashita.)
ruin definition card — visual illustration of the meaning
verb B2
/ˈruːɪn/
破壊する (hakai suru)

to destroy or severely damage something so that it no longer works or is of no use.

"Heavy rain ruined the wedding decorations."

"大雨が結婚式の装飾を台無しにした。" (Ōame ga kekkonshiki no sōshoku o dainashi ni shita.)
ruling definition card — visual illustration of the meaning
noun B2
/ˈruːlɪŋ/
判決 (hanketsu)

an official decision made by a judge or authority.

"The court’s ruling favored the defendant."

"裁判所の判決は被告に有利でした。" (Saibansho no hanketsu wa hikoku ni yūri deshita.)
verb B2
/ˈrʌm.bəl/
幸せ (shiawase)

to make a continuous deep, resonant sound

"Thunder rumbled in the distance."

"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。" (Kanojo wa shō o uketotta toki, jibun no shiawase o kakusu koto ga dekimasen deshita.)
rumor definition card — visual illustration of the meaning
noun B2
/ˈruːmər/
(uwasa)

a currently circulating story or report of uncertain or doubtful truth.

"There’s a rumor that the company will merge next year."

"来年、会社が合併するという噂があります。" (Rainen, kaisha ga gappei suru to iu uwasa ga arimasu.)
Rumour definition card — visual illustration of the meaning
noun B2
/ˈruːmər/
噂; ゴシップ; ニュース (rūmā)

a currently circulating story or report of uncertain or doubtful truth; gossip

"There's a rumour that the company will close next month."

"会社が来月閉鎖されるという噂があります。" (kaisha ga raigetsu heisa sareru to iu uwasa ga arimasu)
adjective B2
/ˈrʌn daʊn/
荒れ果てた (arehateta)

in a poor condition; worn out or neglected

"They live in a run-down house at the edge of town."

"彼らは町の端にある荒れ果てた家に住んでいます。" (Karera wa machi no hashi ni aru arehateta ie ni sundeimasu.)
Rush definition card — visual illustration of the meaning
verb B2
/rʌʃ/
急ぐ (isogu)

to move or act with great speed or urgency

"She had to rush to the meeting to make it on time."

"彼女は会議に時間通りに到着するために急がなければならなかった。" (Kanojo wa kaigi ni jikan dōri ni tōchaku suru tame ni isoganakereba naranakatta.)
Rust definition card — visual illustration of the meaning
noun B2
/rʌst/
(sabi)

reddish-brown coating formed on iron or steel by oxidation; corrosion

"The old car was covered in rust after years of neglect."

"古い車は何年も放置されていた後、サビで覆われていました。" (Furui kuruma wa nannen mo houchi sarete ita ato, sabi de owarete imashita.)
adjective B2
/ˈrʌs.ti/
錆びた; 練習不足; 最近の練習不足による障害 (sabita; renshu busoku; saikin no renshu busoku ni yoru shougai)

affected by rust; out of practice; impaired by lack of recent practice

"My piano skills are rusty after not playing for years."

"何年もピアノを弾いていなかったので、私のピアノのスキルは錆びついています。" (Nannen mo piano wo hiite inakatta node, watashi no piano no sukiru wa sabitsuiteimasu.)
adjective B2
/ˈruːθləs/
無情な (mujōna)

Having or showing no pity or compassion for others.

"The ruthless leader crushed all opposition."

"無情な指導者はすべての反対を押しつぶした。" (Mujōna shidōsha wa subete no hantai o oshitsubushita.)
ruthless competition definition card — visual illustration of the meaning
noun B2
ˈruθləs ˌkɑmpəˈtɪʃən
容赦ない競争 (yōsha nai kyōsō)

Fierce and merciless rivalry or contest, without pity or compassion.

"Ruthless competition for power leads to societal issues."

"権力のための容赦ない競争は社会問題を引き起こします。" (Kenryoku no tame no yōsha nai kyōsō wa shakai mondai o hikiokoshimasu.)
Sabotage definition card — visual illustration of the meaning
verb B2
/ˈsæbətɑːʒ/
破壊活動 (hakai katsudou)

To deliberately destroy, damage, or obstruct something, especially for political or military advantage.

"The rebels tried to sabotage the railway lines."

"反乱者たちは鉄道の線路をサボタージュしようとした。" (Hanransha-tachi wa tetsudou no senro o sabotāju shiyou to shita.)
sack definition card — visual illustration of the meaning
noun B2
/sæk/
(fukuro)

a large bag made of strong material for holding things

"He carried a sack of rice on his shoulder."

"彼は肩に米の袋を持っていました。" (Kare wa kata ni kome no fukuro wo motteimashita.)
Sacred definition card — visual illustration of the meaning
adjective B2
/ˈseɪkrɪd/
神聖な (shinsei na)

connected with God or a religion and considered holy or deserving respect

"The temple is a sacred place for the community."

"その寺院は地域社会にとって神聖な場所です。" (Sono jiin wa chiikishakai ni totte shinsei na basho desu.)
sacrifice definition card — visual illustration of the meaning
🕯️

sacrifice

noun, verb B2
/ˈsækrɪfaɪs/

To give up something valuable for the sake of others or a higher purpose.

"Parents often sacrifice their own comfort for their children."

noun/verb B2
/ˈsæd.əl/
馬の鞍; 誰かに責任を負わせる (uma no kura; dareka ni sekinin wo owaseru)

A seat fastened on the back of a horse for riding; to burden someone with a responsibility.

"He saddled the horse before going for a ride."

"彼は乗馬の前に馬にサドルをつけた。" (Kare wa jōba no mae ni uma ni saddoru wo tsuketa.)
Safeguard definition card — visual illustration of the meaning
noun/verb B2
/ˈseɪf.ɡɑːrd/
守る (mamoru)

To protect from harm or damage; a measure taken to ensure safety.

"Laws exist to safeguard the rights of children."

"法律は子供たちの権利を守るために存在します。" (Hōritsu wa kodomotachi no kenri o mamoru tame ni sonzai shimasu.)
salute definition card — visual illustration of the meaning
verb B2
/səˈluːt/
敬礼 (keirei)

to greet with respect; to honor

"The soldiers saluted their commanding officer."

"兵士たちは指揮官に敬礼した。" (Heishitachi wa shikikan ni keirei shita.)
noun B2
/ˈsæŋk.tʃuˌɛr.i/
避難所 (hinanjo)

A place of safety, refuge, or protection; a sacred place.

"The forest is a sanctuary for endangered animals."

"その森は絶滅危惧種の動物たちの避難所です。" (Sono mori wa zetsumetsu kigushu no dōbutsutachi no hinanjo desu.)
adjective B2
/ˈsændi/
砂の; 砂質の (suna no, sunashitsu no)

covered with sand; containing sand; having the texture of sand

"The sandy beach stretched for miles along the coast."

"砂浜は海岸に沿って何マイルも続いていました。" (Sunahama wa kaigan ni sotte nan mairu mo tsudzuite imashita.)
sanitation definition card — visual illustration of the meaning
noun B2
/ˌsænɪˈteɪʃən/
衛生管理 (eisei kanri)

The systems and practices for maintaining hygiene and public health, especially through clean water and sewage disposal.

"Improving sanitation can reduce the spread of diseases."

"衛生管理の改善は病気の広がりを減らすことができます。" (Eisei kanri no kaizen wa byōki no hirogari o herasu koto ga dekimasu.)
noun B2
/ˈsɑːrˌkæzəm/
皮肉 (hiniku)

The use of irony to mock or convey contempt.

"His sarcasm often made people laugh but sometimes offended them."

"彼の皮肉はよく人々を笑わせたが、時々彼らを怒らせた。" (Kare no hiniku wa yoku hitobito o warawaseta ga, tokidoki karera o okorase ta.)
adjective B2
/sɑːrˈkæstɪk/
皮肉な (hiniku na)

Using irony or mockery to convey contempt or humor.

"She made a sarcastic remark about his cooking."

"彼女は彼の料理について皮肉なコメントをしました。" (Kanojo wa kare no ryōri ni tsuite hiniku na komento o shimashita.)
satellite definition card — visual illustration of the meaning
noun B2
/ˈsætəlaɪt/
衛星 (eisei)

An artificial body placed in orbit around the earth or another planet to collect information or for communication.

"The weather satellite provided real-time images of the storm."

"気象衛星は嵐のリアルタイム画像を提供しました。" (Kishou eisei wa arashi no riaru taimu gazou wo teikyoushimashita.)
noun B2
/ˈsætaɪər/
風刺 (fūshi)

The use of humor, irony, or exaggeration to criticize people's stupidity or vices.

"The play was a brilliant satire on modern politics."

"その劇は現代政治への素晴らしい風刺でした。" (Sono geki wa gendai seiji e no subarashī fūshi deshita.)
adjective B2
/ˈsævɪdʒ/
野蛮; 残酷 (yaban; zankoku)

fierce, violent, or uncontrolled; cruel or brutal

"The storm brought savage winds that tore branches from the trees."

"嵐は、木の枝を引き裂くような荒々しい風をもたらしました。" (Arashi wa, ki no eda o hikisaku yō na araarashī kaze o motarashimashita.)
Saxophone definition card — visual illustration of the meaning
noun B2
/ˈsæksəfoʊn/
サクソフォン (sakusofon)

a wind musical instrument with a curved metal body and a single reed mouthpiece

"The jazz musician played a beautiful solo on his saxophone."

"ジャズのミュージシャンは自分のサクソフォンで美しいソロを演奏しました。" (Jazu no myūjishan wa jibun no sakusofon de utsukushī soro o ensō shimashita.)