sumac sum-up • sumac family · · · Info · Definitions · Synonyms · Characters · · sumac · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) wood of a sumac. · · Noun Definition 1 (noun) a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus). Synonyms: sumach, shumac. · · Noun Definition 2 Synonyms · · · sumach · · Synonym 1 shumac · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 m latin small letter m U+006D s latin small letter s U+0073 u latin small letter u U+0075