◌͞◌

Human sciences, Lexicography, Linguistics, Sciences Diacritic Used to mark the digraph ⟨oo⟩ as having its 'long' sound: ⟨o͞o⟩ /uː/.

Human sciences, Lexicography, Linguistics, Sciences Dated, Diacritic Ties together the pronunciation-key digraphs a͞a, a͞e, a͞o, e͞w, c͞i, s͞i, t͞h, t͞i.