eightieth eighthly • eightling · · · Info · Definitions · Synonyms · Characters · · eightieth · · Text Latin · · Script 9 · · Length Definitions · · · (noun) position 80 in a countable series of things. · · Noun Definition 1 (adj) the ordinal number of eighty in counting order. Synonyms: 80th. · · Adjective Definition 1 Synonyms · · · 80th · · Synonym 1 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 t latin small letter t U+0074