1. (

• veto ,
• blackball ,
• negative

) vote against; refuse to endorse; refuse to assent; "The President vetoed the bill" ;

2. (

• forbid ,
• prohibit ,
• interdict ,
• proscribe ,
• veto ,
• disallow ,
• nix

) command against; "I forbid you to call me late at night"; "Mother vetoed the trip to the chocolate store"; "Dad nixed our plans" ;