exhaust fumes exhaust fan • exhaust head · · · Info · Definitions · Synonyms · Characters · · exhaust fumes · · Text Common · · Latin · · Scripts 13 · · Length 5 · · Syllables Definitions · · · (noun) gases ejected from an engine as waste products. Synonyms: exhaust, exhaust fumes, fumes. · · Noun Definition 1 Synonyms · · · exhaust · · Synonym 1 fumes · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 m latin small letter m U+006D s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 x latin small letter x U+0078