発はつ音おん区く別べつ符ふ号ごうはつおんくべつふごうMeanings1noundiacritical mark; diacriticLinguistic term for marks added to letters to indicate a different pronunciation, such as accents, umlauts, or cedillas.フランス語ごでは、発はつ音おん区く別べつ符ふ号ごうが母ぼ音いんの上うえに付つくことが多おおい。In French, diacritical marks are often placed above vowels.