Noun
a mark (`) placed above a vowel to indicate pronunciation
Source: WordNetDiacritics Three kinds of diacritic were in common use: the acute accent ´, the grave accent `, and the circumflex accent ˆ. These were normally only marked on vowels (e.g. í, è, â); but see below regarding que. Source: Internet
Many earlier (pre-1985) computer displays and printers rendered the ASCII apostrophe as a typographic apostrophe, and rendered the ASCII grave accent ( ` ) U+0060 as a matching left single quotation mark. Source: Internet
In the examples below, breathy voice is marked with a grave accent. Source: Internet
The grave accent had various uses, none related to pronunciation or stress. Source: Internet
The grave accent is used over any vowel to indicate word-final stress, as in gioventù "youth". Source: Internet
The schwa vowel /ǝ/ is written ambiguously as e, but its accentuation will sometimes distinguish it: a long vowel mark can never appear on a schwa, while a grave accent can appear only on a schwa. Source: Internet