Macron meaning
A symbol (¯) placed over a vowel to show that it has a long sound.
noun
The horizontal mark (¯) used to indicate a stressed or long syllable in a foot of verse.
noun
A short, straight mark (¯) placed over a vowel to indicate that it is long or is to be pronounced in a certain way.
noun
(orthography) A short, straight, horizontal diacritical mark (¯) placed over any of various letters. It usually is used to indicate that the pronunciation of the vowel is long; in Mandarin pinyin (Chinese), it indicates the first tone, e.g. chūzūchē.
noun
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Origin of macron
From the Ancient Greek μακρόν (makron), neuter form of μακρός (makros, “long”) (English macro-).