variable star variable-speed gear • variable time fuze · · · Info · Definitions · Synonyms · Characters · · variable star · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) a star that varies noticeably in brightness. Synonyms: variable star, variable. · · Noun Definition 1 Synonyms · · · variable · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076