Synonyms for null Found 14 synonyms across 2 meanings for “null”. a quantity of no importance (noun) nothingnilnixnadaaughtciphercyphernaughtzerozilchzipzippo lacking any legal or binding force (adj) void Explore Related Words Rhymes with nullSynonyms for nothingSynonyms for nilSynonyms for nixSynonyms for nadaSynonyms for aught Synonym Finder | Rhyme Finder | Poetry Editor