jeopardize
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英語 BN ベンガル語 HI ヒンディー語 ES スペイン語 FR フランス語 DE ドイツ語 RU ロシア語 ZH 中国語 JA 日本語
All Vocabulary Cards All Vocabularies
C1 verb /ˈdʒepərdaɪz/

jeopardize

危険にさらす
Meaning
to put something at risk of being damaged or destroyed
Example
His reckless behavior could jeopardize his career.
彼の無謀な行動は彼のキャリアを危険にさらす可能性がある。
C1 verb /dʒɒt/

jot

素早く短く書く
Meaning
to write something quickly and briefly
Example
She jotted down his phone number on a napkin.
彼女はナプキンに彼の電話番号を素早く書き留めました。
C1 noun /ˈdʒʌŋk.tʃər/

Juncture

重要な時点
Meaning
a particular point in events or time; a critical moment when important decisions must be made
Example
At this juncture, we need to make a crucial decision about our future.
この重要な時点で、私たちは未来について重要な決定を下さなければなりません。
C1 adjective /ˈdʒɑː.rɪŋ/

jarring

耳障りな、衝撃的な
Meaning
Striking or shocking in a way that creates a strong contrast or clash.
Example
The sudden loud noise was jarring to everyone in the room.
突然の大きな音は部屋の中の皆に衝撃を与えました。
C1 noun /ˈdʒækˌfruːt/

Jackfruit

ジャックフルーツ
Meaning
a large tropical fruit with a spiky exterior and sweet flesh inside
Example
The jackfruit is the largest tree fruit in the world.
ジャックフルーツは世界で一番大きな木の果物です。
C1 verb /ˈdʒɒsl/

jostle

押す
Meaning
to push, elbow, or bump against someone roughly, typically in a crowd
Example
The fans jostled each other to get closer to the stage.
ファンたちはステージに近づくためにお互いに押し合っていました。
C1 adjective /ˈdʒoʊ.vi.əl/

jovial

陽気な
Meaning
cheerful and friendly in manner
Example
He was in a jovial mood during the family gathering.
彼は家族の集まりで陽気な気分だった。
C1 verb /dʒəʊlt/

jolt

衝撃
Meaning
to push or shake someone or something abruptly and roughly
Example
The sudden stop jolted all the passengers forward.
突然の停止で、すべての乗客が前方に押し出されました。
C1 noun /ˈdʒʌɡərˌnɔːt/

juggernaut

止められない力
Meaning
A huge, powerful, and unstoppable force or institution.
Example
The new tech company has become a juggernaut in the industry.
新しいテクノロジー企業は業界で止められない力となった。
C1 noun /ˈdʒʌɡ.lər/

Juggler

ジャグラー
Meaning
a person who skillfully throws and catches objects as entertainment
Example
The juggler entertained the crowd with his amazing ball tricks.
ジャグラーは彼の見事なボールさばきで観客を楽しませた。
C1 noun /ˈdʒuː.və.naɪl/

Juvenile

未成年者; 若者
Meaning
a young person below the age of adult criminal responsibility; relating to young people
Example
The juvenile court handles cases involving young offenders under eighteen.
少年裁判所は、18歳未満の若年犯罪者に関する事件を扱います。
C1 noun /ˌdʒuː.bɪˈleɪ.ʃən/

jubilation

歓喜
Meaning
a feeling or expression of great happiness and triumph
Example
There was jubilation in the streets after the victory.
勝利後、街中は歓喜に包まれていました。
C1 noun /ˈdʒɑːr.ɡən/

jargon

専門用語
Meaning
Specialized or technical language used by a particular group or profession.
Example
The lawyer’s explanation was full of legal jargon.
弁護士の説明は法律専門用語でいっぱいでした。
C1 verb /ˈdʒɪtər/

jitter

震える
Meaning
to shake or tremble slightly, often from fear, nervousness, or excitement
Example
He began to jitter nervously before giving his speech.
彼はスピーチの前に緊張して震え始めました。
C1 /ˈdʒɛtɪsən/

jettison

放棄する
Meaning
to throw or drop something from a ship, aircraft, or vehicle to lighten the load; to abandon something no longer wanted
Example
The crew had to jettison cargo to save the sinking ship.
乗組員は沈没している船を救うために貨物を投げ捨てなければならなかった。
C1 noun /ˈdʒɔːn.dɪs/

jaundice

黄疸
Meaning
A medical condition in which the skin and eyes become yellow due to liver problems.
Example
The doctor diagnosed the baby with jaundice.
医師は赤ちゃんに黄疸と診断しました。
C1 noun /dʒest/

Jest

冗談; いたずら
Meaning
a thing said or done for amusement; a joke
Example
His comment was made in jest, not to offend anyone.
彼のコメントは冗談で言われたもので、誰かを傷つけるためではなかった。
C1 noun /ˈdʒuː.bɪ.liː/

Jubilee

記念日; 特別な記念式典
Meaning
a special anniversary celebration, especially the 25th, 50th, or 60th anniversary of an important event
Example
The school celebrated its golden jubilee with a grand ceremony.
学校はその金色の記念日を豪華な式典で祝いました。
C1 verb /ˈdʒʌmbəl/

jumble

混ぜる
Meaning
to mix things together in a confused or untidy way
Example
Don't jumble all the papers together in one pile.
すべての書類を一つの山に混ぜないでください。
C1 verb /ˈdʒʌɡəl/

juggle

ジャグリングする
Meaning
To continuously toss and catch objects in the air; to manage many tasks at the same time.
Example
He tried to juggle work, studies, and family responsibilities.
彼は仕事、勉強、家族の責任を同時にこなそうとしました。
C1 noun /ˈdʒet.i/

Jetty

桟橋
Meaning
a landing stage or small pier at which boats can dock or be moored
Example
The fishing boats were tied up at the wooden jetty near the harbor.
漁船は港近くの木製の桟橋に係留されていた。
C1 verb /dʒæb/

jab

Meaning
To poke or thrust quickly, often with a finger or something pointed.
Example
He jabbed his finger at the map to show the location.
C1 noun /ˌdʒʊə.rɪsˈdɪk.ʃən/

Jurisdiction

管轄
Meaning
the official power to make legal decisions and judgments; the extent of this power
Example
This case falls under the jurisdiction of the federal court.
このケースは連邦裁判所の管轄下にあります。
C1 adjective /ˈdʒeɪ.dɪd/

jaded

疲れた, 無関心
Meaning
Tired, bored, or lacking enthusiasm, typically after having had too much of something.
Example
After years of traveling, she felt jaded by the constant movement.
何年もの旅行の後、彼女は絶え間ない移動に疲れを感じた。
C1 noun /ˈdʒɒt.ər/

Jotter

メモ帳
Meaning
a small notebook for writing quick notes or reminders
Example
The student carried a jotter to write down important points during lectures.
学生は講義中に重要なポイントを書き留めるためにメモ帳を持っていました。
C1 noun dʒuːˈdɪʃ.ər.i

judiciary

司法制度
Meaning
The judicial authorities of a country; the system of courts that interprets and applies the law.
Example
The judiciary ensures the rule of law.
司法制度は法の支配を保障する。
C1 noun /ˈdʒʊərər/

juror

陪審員
Meaning
a member of a jury who is chosen to hear evidence in a legal case and help make a decision
Example
The juror listened carefully to the witness’s testimony.
陪審員は証人の証言を慎重に聞きました。
C1 noun /ˌdʒʌkstəpəˈzɪʃən/

juxtaposition

並置
Meaning
The fact of two things being seen or placed close together with contrasting effect.
Example
The juxtaposition of light and dark colors created a dramatic effect.
明るい色と暗い色の並置が劇的な効果を生み出しました。
C1 noun /ˈdʒɪŋ.ɡəl/

Jingle

金属の物体がぶつかり合って発生する軽い音; 短くてキャッチーな歌
Meaning
a light ringing sound such as that made by metal objects being shaken together; a short catchy song
Example
The jingle of keys could be heard as she walked down the hallway.
廊下を歩いているとき、鍵の音が聞こえました。
C1 noun /ˌdʒæm.bəˈriː/

Jamboree

祭典; フェスティバル;
Meaning
a large celebration or party; a gathering with entertainment; a festive event
Example
The scout jamboree brought together thousands of young people from around the world.
スカウトジャムボリーは、世界中から数千人の若者たちを集めました。
C1 adjective dʒuːˈdɪʃ.əs

judicious

賢明
Meaning
Having, showing, or done with good judgment or sense; wise and careful.
Example
A judicious decision can prevent future problems.
賢明な決定は未来の問題を防ぐことができます。
C1 adjective /dʒuːˈdɪʃ.əl/

judicial

司法の
Meaning
relating to judges, courts, or the administration of justice
Example
The new law faced strong judicial review before implementation.
新しい法律は実施前に厳格な司法審査を受けました。
C1 verb /ˈdʒʌk.stə.poʊz/

juxtapose

異なる二つの物を並べて置く
Meaning
To place two different things close together to show how they are different or similar.
Example
The artist juxtaposed traditional and modern elements in his painting.
アーティストは彼の絵画で伝統的と現代的な要素を並べて置きました。
C1 noun /ˈdʒɛpərdi/

jeopardy

危険
Meaning
Danger of loss, harm, or failure.
Example
His careless driving put everyone in jeopardy.
彼の不注意な運転はみんなを危険にさらした。
C1 adjective /ˈdʒuː.bɪ.lənt/

jubilant

歓喜
Meaning
feeling or expressing great happiness and joy
Example
The team was jubilant after winning the championship.
チームはチャンピオンシップを勝ち取った後、歓喜していました。