Dictionary.net

a of security issued by a corporation (usually together with a bond or preferred stock) that gives the holder the right to purchase a certain amount of common stock at a stated price.

stand behind and guarantee the quality, accuracy, or condition of; "The dealer warrants all the cars he sells"; "I warrant this information"

show to be reasonable or provide adequate ground for; "The emergency does not warrant all of us buying guns"; "The end justifies the means"

In law and common usage: to undertake or engage for the payment of (a debt) or the performance of (a duty) by another person; to undertake to secure (a possession, right, claim, etc.) to another against a specified contingency, or at all avents; to give a guarantee concerning; to engage, assure, or secure as a thing that may be depended on; to warrant; as, to guarantee the execution of a treaty.

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.

In law and common usage: to undertake or engage for the payment of (a debt) or the performance of (a duty) by another person; to undertake to secure (a possession, right, claim, etc.) to another against a specified contingency, or at all avents; to give a guarantee concerning; to engage, assure, or secure as a thing that may be depended on; to warrant; as, to guarantee the execution of a treaty.

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.

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.

An official certificate of appointment issued to an officer of lower rank than a commissioned officer. See officer, below.

See search warrant or arrest warrant.

An official paper giving authority; a writ or order for arresting a person; that which vouches for or guarantees anything; just ground; as, he acted without warrant; in the army, a certificate of rank or appointment issued to one of lower rank than a commissioned officer.

To guarantee; give assurance to; authorize; declare as certain; make secure; give just ground for or to.

Warranter, warrantor.

That which warrants or authorizes: a commission giving authority: a writ for arresting a person: security.

A commission; writ for arresting; summons; voucher; authority.

To authorise; justify; assure; obtain a writ against.

To guarantee the quality or character of; assure; justify.

A judicial writ authorizing arrest, search, seizure, etc.

A voucher; guaranty; sanction.

Warrantable.

An act, instrument, or obligation by which one person authorizes another to do something which he has not otherwise a right to do; authority; power that authorizes or justifies any act; a commission giving authority; a voucher; that which attests or proves; right; a writing which authorizes a person to receive money or other thing; a writ of authority inferior to a commission. Warrant of attorney, a written authority given by a client to his attorney to appear for him.

To authorize; to maintain; to support by authority or proof; to justify; to secure; to pledge one's self for; to declare with assurance; to secure to a grantee an estate granted; to secure to a purchaser the good quality of the goods sold.

To authorise; to justify; to assure; to secure to, as to a purchaser the quantity and quality of the goods sold as represented.

A written document conferring some right or authority; that which authorises or justifies an act; that which vouches or insures for anything.

n. That which warrants or authorizes ; a commission giving authority or justifying the doing of any thing ;-a precept authorizing an officer to seize an offender and bring him to justice ;—that which vouches or insures for any thing ; guarantee ; security ; that which attests or proves ; a voucher ;- a writing which authorizes a person to receive money or other thing.