roof of the mouth roof nucleus • roof peak · · · Info · Definitions · Synonyms · Characters · · roof of the mouth · · Text Common · · Latin · · Scripts 17 · · Length 4 · · Syllables Definitions · · · (noun) the upper surface of the mouth that separates the oral and nasal cavities. Synonyms: palate, roof of the mouth. · · Noun Definition 1 Synonyms · · · palate · · Synonym 1 Characters · · space U+0020 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 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075