Translation guide
A macron is a diacritical mark (¯) placed over a vowel to indicate a long sound. In Japanese, this concept is most relevant when discussing romanization systems (rōmaji) or phonetic notation. There is no single everyday Japanese word for the symbol itself; instead, you describe it by its function or appearance.
Referring to the diacritical mark ¯ used to indicate a long vowel, especially in rōmaji or linguistic contexts.
Literally 'long sound symbol'. This is the standard term for the macron when used to indicate vowel length in phonetic or linguistic notation.
In rōmaji, the macron is used to indicate long vowels.
The direct loanword from English. Understood in linguistic or academic contexts, but less common than descriptive terms.
This dictionary uses vowels with macrons.
Descriptive phrase meaning 'a horizontal line placed above'. Used when explaining the symbol's appearance to someone unfamiliar with the term.
Draw a horizontal line above the vowel to indicate a long sound.
Talking about a specific character that has a macron, like ā, ī, ū, ē, ō.
Pattern meaning 'a character with a macron attached to ~'. Replace 〜 with the base letter.
'ā' is the letter 'a' with a macron.
Pattern meaning '~ with a macron'. Slightly more technical due to the loanword.
'o' with a macron is written as 'ō'.
In Japanese writing, long vowels are indicated differently depending on the script. In hiragana, ああ, いい, うう, ええ/えい, おお/おう are used. In katakana, a long dash ー (chōonpu) is used. The macron is primarily a tool of rōmaji, so when explaining the concept to Japanese speakers, it's helpful to connect it to these native conventions.
In Japanese katakana, long vowels are shown with 'ー', but in rōmaji, a macron is used.