The grave accent ( ` ) (US: or UK: ) is a diacritical mark in many written languages, including Breton, Catalan, Corsican, Dutch, Emilian-Romagnol, French, West Frisian, Greek (until 1982; see polytonic orthography), Haitian Creole, Italian, Mohawk, Occitan, Portuguese, Ligurian, Scottish Gaelic, Vietnamese, Welsh, Romansh, and Yoruba.
== Uses ==
=== Pitch ===
The grave accent first appeared in the polytonic orthography of Ancient Greek to mark a lower pitch than the high pitch of the acute accent. In modern practice, it replaces an acute accent in the last syllable of a word when that word is...