negirati

1. to deny
   Ministar je negirao sve optužbe. — The minister denied all the accusations.
   Niko ne negira da imamo problem. — Nobody denies that we have a problem.
2. formal to negate; to cancel out
   Jedna greška ne negira sav tvoj trud. — One mistake doesn't negate all your effort.

Takes a direct object in the accusative: negirati optužbe, negirati činjenicu.