(n): the state of being certain
(n): a binding commitment to do or give or refrain from something
(n): a message that makes a pledge
(n): a statement intended to inspire confidence
(n): a message that is stated or declared; a communication (oral or written) setting forth particulars or facts etc
(n): a British term for some kinds of insurance
(n): promise of reimbursement in the case of loss; paid to people or companies so concerned about hazards that they have made prepayments to an insurance company