diacritic

US /ˌdaɪ.əˈkrɪt̬.ɪk/
UK /ˌdaɪ.əˈkrɪt̬.ɪk/
"diacritic" picture
1.

diacrítico, sinal diacrítico

a mark, sign, or symbol added to a letter or character to indicate a specific phonetic value, stress, tone, or other linguistic feature

:
The acute accent is a common diacritic in French.
O acento agudo é um diacrítico comum em francês.
Many languages use diacritics to distinguish between words with similar spellings.
Muitas línguas usam diacríticos para distinguir entre palavras com grafias semelhantes.