what is the accent over the i in spanish called
Spanish orthography Spanish uses only the acute accent, over any vowel: á é í ó ú. This accent is used to mark the tonic (stressed) syllable, though it may also be used occasionally in monosyllabic words to distinguish homophones such as si ('if') and sí ('yes'). The only other diacritics used are the tilde on the letter ⟨ñ⟩, which is considered a separate letter from ⟨n⟩, and the diaeresis used in some instances over ⟨u⟩ in words like bilingüe ('bilingual').