Synonyms for vapor Found 4 synonyms across 2 meanings for “vapor”. a visible suspension in the air of particles of some substance (noun) vapour the process of becoming a vapor (noun) vaporizationvaporisationevaporation Explore Related Words Rhymes with vaporSynonyms for vapourSynonyms for vaporizationSynonyms for vaporisationSynonyms for evaporation Synonym Finder | Rhyme Finder | Poetry Editor