fall open fall of man • Fallopian · · · Info · Definitions · Synonyms · Characters · · fall open · · Text Common · · Latin · · Scripts 9 · · Length 3 · · Syllables Definitions · · · (verb) open involuntarily. Synonyms: drop open, fall open. Examples: "His mouth dropped open." "Her jaw dropped." · · Verb Definition 1 Synonyms · · · drop open · · Synonym 1 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 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070