sustainer sustained • sustaining · · · Info · Definitions · Synonyms · Characters · · sustainer · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) someone who upholds or maintains. Synonyms: upholder, maintainer. Examples: "Firm upholders of tradition." "They are sustainers of the idea of democracy." · · Noun Definition 1 Synonyms · · · upholder · · Synonym 1 maintainer · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075