warranted Definition

warrant
noun

1. A written legal authorization for doing something, eg arresting someone, or searching property.

Thesaurus: permit, authorization, licence, sanction.
2. Someone who gives this authorization.
3. A certificate such as a licence, voucher or receipt, that authorizes, guarantees or confirms something.

Thesaurus: voucher, guarantee, warranty, assurance.
4. A justification.

Example: has no warrant for such an accusation
5. military.
A certificate appointing a warrant officer.

verb warranted, warranting

1. To justify something.

Thesaurus: justify, explain, give grounds for, call for, deserve, merit, bear out.
2. old use
To assert something with confidence; to be willing to bet on it.
3. To guarantee (goods, etc) as being of the specified quality or quantity; to confirm as genuine or worthy, etc.

Thesaurus: authorize, approve, sanction, license, empower.

Idiom: I warrant (I'll warrant)

I've no doubt; for certain.

Etymology: 13c: from French warant.