Refers to the diacritical mark ´ used in various languages, such as French or Spanish, to indicate stress or vowel quality. In Japanese contexts, it may appear in discussions of foreign orthography or linguistics.
In French, an acute accent is sometimes placed above a vowel.
Compound of 揚 (よう, 'rising') + 音符 (おんぷ, 'musical note' or 'phonetic mark'), referring to the upward-slanting shape of the acute accent.