1. warrant - Noun
2. warrant - Verb
That which warrants or authorizes; a commission giving authority, or justifying the doing of anything; an act, instrument, or obligation, by which one person authorizes another to do something which he has not otherwise a right to do; an act or instrument investing one with a right or authority, and thus securing him from loss or damage; commission; authority.
A writing which authorizes a person to receive money or other thing.
A precept issued by a magistrate authorizing an officer to make an arrest, a seizure, or a search, or do other acts incident to the administration of justice.
An official certificate of appointment issued to an officer of lower rank than a commissioned officer. See Warrant officer, below.
That which vouches or insures for anything; guaranty; security.
That which attests or proves; a voucher.
Right; legality; allowance.
To make secure; to give assurance against harm; to guarantee safety to; to give authority or power to do, or forbear to do, anything by which the person authorized is secured, or saved harmless, from any loss or damage by his action.
To support by authority or proof; to justify; to maintain; to sanction; as, reason warrants it.
To give a warrant or warranty to; to assure as if by giving a warrant to.
To secure to, as a grantee, an estate granted; to assure.
To secure to, as a purchaser of goods, the title to the same; to indemnify against loss.
To secure to, as a purchaser, the quality or quantity of the goods sold, as represented. See Warranty, n., 2.
To assure, as a thing sold, to the purchaser; that is, to engage that the thing is what it appears, or is represented, to be, which implies a covenant to make good any defect or loss incurred by it.
Source: Webster's dictionaryI need no warrant for being, and no word of sanction upon my being. I am the warrant and the sanction. - Anthem. Ayn Rand
There are very few monsters who warrant the fear we have of them. André Gide
The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others. His own good, either physical or moral, is not sufficient warrant. John Stuart Mill
The night's too short to warrant marrying poor. Russian Proverb
Innocent actions carry their warrant with them. English Proverb
One fault does not warrant divorce of a wife. Swahili Proverb