Macron vs. Diacritic
Difference Between Macron and Diacritic
(orthography) A short, straight, horizontal diacritical mark (¯) placed over any of various letters, usually to indicate that the pronunciation of a vowel is long.
a diacritical mark (-) placed above a vowel to indicate a long sound
Denoting a distinguishing mark applied to a letter or character.
A special mark added to a letter to indicate a different pronunciation, stress, tone, or meaning.
a mark added to a letter to indicate a special pronunciation
capable of distinguishing;students having superior diacritic powersthe diacritic elements in culture