thirties thirteenthly • thirtieth · · · Info · Definitions · Synonyms · Characters · · thirties · · Text Latin · · Script 8 · · Length 2 · · Syllables Definitions · · · (noun) the time of life between 30 and 40. Synonyms: mid-thirties, thirty-something. · · Noun Definition 1 (noun) the decade from 1930 to 1939. Synonyms: 1930s. · · Noun Definition 2 (noun) the cardinal number that is the product of ten and three. Synonyms: thirty, 30, XXX. · · Noun Definition 1 Synonyms · · · mid-thirties · · Synonym 1 thirty-something · · Synonym 2 1930s · · Synonym 3 thirty · · Synonym 4 30 · · Synonym 5 xxx · · Synonym 6 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074