Synonyms for thorn Found 6 synonyms across 2 meanings for “thorn”. something that causes irritation and annoyance (noun) irritant a small sharp-pointed tip resembling a spike on a stem or leaf (noun) spineprickleprickerstickerspikelet Explore Related Words Rhymes with thornSynonyms for irritantSynonyms for spineSynonyms for prickleSynonyms for prickerSynonyms for sticker Synonym Finder | Rhyme Finder | Poetry Editor