Synonyms for soot Found 4 synonyms across 1 meaning for “soot”. a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink (noun) lampblacksmutcrock Explore Related Words Rhymes with sootSynonyms for lampblackSynonyms for smutSynonyms for crock Synonym Finder | Rhyme Finder | Poetry Editor