influenza influentially • influenzal · · · Info · Definitions · Synonyms · Characters · · influenza · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) an acute febrile highly contagious viral disease. Synonyms: flu, grippe. · · Noun Definition 1 Synonyms · · · flu · · Synonym 1 grippe · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E u latin small letter u U+0075 z latin small letter z U+007A