third gear third eyelid • thirdhand · · · Info · Definitions · Synonyms · Characters · · third gear · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) the third from the lowest forward ratio gear in the gear box of a motor vehicle. Synonyms: third gear, third. Example: "You shouldn't try to start in third gear." · · Noun Definition 1 Synonyms · · · third · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 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 r latin small letter r U+0072 t latin small letter t U+0074