To express support or approval, especially officially or publicly.
To report (a symptom); to describe.
To write one's signature on the back of a cheque, or other negotiable instrument, when transferring it to a third party, or cashing it.
To give an endorsement.
A diminutive of the pale, usually appearing in pairs on either side of a pale.
To give an assurance that something will be done right.
To make something certain.
To assume or take responsibility for a debt or other obligation.
The person to whom a guarantee is made.
A person who gives such a guarantee; a guarantor.
A legal assurance of something, e.g. a security for the fulfillment of an obligation.
More specifically, a written declaration that a certain product will be fit for a purpose and work correctly; a warranty
Anything that assures a certain outcome.