◌̄
character1
Human sciences, Lexicography, Linguistics, Sciences Diacritic Used to mark a vowel letter as having its 'long' sound: ⟨ā⟩ /eɪ/, ⟨ē⟩ /iː/, ⟨ī⟩ /aɪ/, ⟨ō⟩ /oʊ/, ⟨ū⟩ /juː/.
2
Communications, Journalism, Literature, Media, Poetry, Publishing, Writing Diacritic Placed over a vowel letter to indicate that the syllable is long. Also used alone to mark stress in a metrical foot or verse: see ⟨ˉ⟩.