Home › Words › N › nullifiernullifiernullifier · noun — one who, or that which, nullifies.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom nullify + -er.nounOne who, or that which, nullifies.A person holding the belief that states could nullify federal laws within their borders.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.negator 78% match — One who, or that which, negates. vs nullifier →invalidator 77% match — One who, or that which, makes invalid. vs nullifier →nullifying 76% match — The act or process by which something is nullified. vs nullifier →nullifyingly 75% match — In a manner that nullifies. vs nullifier →annuler 73% match — One who, or that which, annuls. vs nullifier →neutralizer 70% match — That which neutralizes. vs nullifier →nullification 70% match — The act of nullifying; a rendering void and of no effect, or no legal effect. vs nullifier →disannuller 69% match — One who disannuls. vs nullifier →