誓せい約やく

せ

い

や

く

Common wordFreq.FrequencyTop 20,000

誓約する · noun or participle which takes 'suru'

Form	Positive	Negative
Dictionary	誓せい約やくする	誓せい約やくしない
Polite	誓せい約やくします	誓せい約やくしません
Past polite	誓せい約やくしました	誓せい約やくしませんでした
Past	誓せい約やくした	誓せい約やくしなかった
Te-form	誓せい約やくして	誓せい約やくしないで
Desire	誓せい約やくしたい	誓せい約やくしたくない
Potential	誓せい約やくできる	誓せい約やくできない
Passive	誓せい約やくされる	誓せい約やくされない
Causative	誓せい約やくさせる	誓せい約やくさせない
Causative passive	誓せい約やくさせられる	誓せい約やくさせられない
Volitional	誓せい約やくしよう
Polite volitional	誓せい約やくしましょう
Imperative	誓せい約やくしろ	誓せい約やくするな
Conditional	誓せい約やくすれば	誓せい約やくしなければ
Tara conditional	誓せい約やくしたら	誓せい約やくしなかったら

Meanings

noun, noun or participle which takes 'suru', transitive verb

oath; vow; pledge; covenant

A formal, often legally or morally binding promise. Used in contexts such as contracts, courtrooms, and solemn personal commitments.

証しょう人にんは法ほう廷ていで真しん実じつを話はなすと誓せい約やくした。
The witness swore an oath in court to tell the truth.
彼かれは禁きん酒しゅの誓せい約やくを立たてた。
He made a pledge to abstain from alcohol.

See all 13 example sentences ›

Usage patterns

誓せい約やくを守まもるto keep a pledge/oath
彼かれは誓せい約やくを守まもり、最さい後ごまで努ど力りょくした。
He kept his pledge and worked hard until the end.
誓せい約やくを破やぶるto break a pledge/oath
彼かの女じょは誓せい約やくを破やぶって会かい社しゃを辞やめた。
She broke her pledge and quit the company.
〈人ひと〉と誓せい約やくを結むすぶto make a formal pledge with someone
会かい社しゃは社しゃ員いんと秘ひ密みつ保ほ持じの誓せい約やくを結むすんだ。
The company made a confidentiality pledge with its employees.
〈事こと〉を誓せい約やくするto pledge to do something
彼かれは二に度どと嘘うそをつかないことを誓せい約やくした。
He pledged never to lie again.

Kanji

誓vow, swear, pledge
約promise, approximately, shrink

Related words· 8

誓ちかい
誓い is a more general, everyday word for a vow or oath, while 誓約 is more formal and often implies a written or legal commitment.
約やく束そくN5
約束 is a common word for a promise or appointment, whereas 誓約 is a solemn, binding oath.
宣せん誓せい
宣誓 refers to formally declaring an oath aloud, often in a ceremony or court, while 誓約 covers any solemn pledge, written or spoken.
誓ちかうN2
誓約する is a formal, often written or contractual pledge, while 誓う can be used for personal vows as well as formal oaths.

Show 4 more

言げん質ち
誓約 is a formal, often written oath or vow, whereas 言質 is typically an informal spoken pledge caught in conversation.
盟めい約やく
誓約 stresses the act of swearing an oath, whereas 盟約 emphasizes the resulting pact or alliance between parties.
確かく約やく
誓約 is a solemn pledge or oath, often with ceremonial or contractual weight, whereas 確約 is a firm but simpler commitment.
公こう約やくN1
誓約 is a solemn, often written oath or vow, while 公約 is specifically a promise made openly to the public.

Don't confuse with

契けい約やくN3
契約 and 誓約 sound alike and both look formal, but 契約 is a business or legal contract between parties, while 誓約 is a personal solemn oath or pledge.

Word family

誓せい約やく書しょ
written oath; pledge; covenant

Etymology

Compound of 誓 (せい, 'swear') and 約 (やく, 'promise'). The exact historical derivation is uncertain, but the combination naturally conveys a binding oath.