Definition of: veto

(vē′tō) v.t. ·toed, ·to·ing
1. To refuse executive approval of (a bill passed by a legislative body).
2. To forbid or prohibit authoritatively: refuse consent to.
—noun plural ·toes
1. The prerogative in a chief executive of refusing to approve a legislative enactment by with-holding his signature.
2. The act of vetoing; also, the official communication containing a refusal to approve a bill.
3. Any authoritative prohibition. [<L, I forbid]
—ve′to·er noun