source: [このすば2 令状を見せるセナ｜無料GIF画像検索 GIFMAGAZINE 3975808]

1. a document issued by a legal or government official authorizing the police or some other body to make an arrest, search premises, or carry out some other action relating to the administration of justice:

〘法〙 «逮捕･捜査などの/…するための» 法的な許可証, 令状 «for/to do»

e.g. magistrates issued a warrant for his arrest

e.g. an extradition warrant.

a document that entitles the holder to receive goods, money, or services:

証明［認可, 免許］証; 金銭支払証券

e.g. we'll issue you with a travel warrant.

Finance a negotiable security allowing the holder to buy shares at a specified price at or before some future date.

〘株式〙 新株引受権, ワラント

2. usually with negative justification or authority for an action, belief, or feeling:

｟かたく｠ «…の» 十分な理由, いわれ «for» ; «…する» 権限 «to do» (!しばしば否定文で)

e.g. there is no warrant for this assumption.

3. an official certificate of appointment issued to an officer of lower rank than a commissioned officer.

〘軍〙 准士官(任命)辞令

verb with object

justify or necessitate (a certain course of action):

〈事などが〉〈物･事〉の十分な理由となる, …を正当化する, 認める; 〖～(A ［A's］) doing〗 (A〈人〉が)…することを許す

e.g. that offense is serious enough to warrant a court martial.

officially affirm or guarantee:

〈商品など〉を保証する; 〖～ that節〗 …だと正式に宣言する; …と保証する, 請け合う

e.g. the vendor warrants the accuracy of the report.

dated used to express the speaker's certainty about a fact or situation:

e.g. I'll warrant you'll thank me for it in years to come.

warranter |ˈwôrən(t)ər| noun

Middle English (in the senses ‘protector’ and ‘safeguard’, also, as a verb, ‘keep safe from danger’): from variants of Old French guarant (noun), guarantir (verb), of Germanic origin; compare with guarantee.