長ちょう音おん符ふ号ごう

noun

long-vowel mark; macron

Linguistic term for the diacritical mark (¯) placed over a vowel to indicate a long sound. In Japanese contexts, often refers to the long-vowel mark used in rōmaji or the ー (chōonpu) in kana.

See also: 長音符

• ローマ字じで長ちょう音おんを表あらわすときは、母ぼ音いんの上うえに長ちょう音おん符ふ号ごうを付つける。

  When indicating a long vowel in rōmaji, a macron is placed over the vowel.