acute accent vs ague

acute accent and ague both are nouns.

Word	Noun	Adjective	Verb	Adverb
acute accent	Yes	No	No	No
ague	Yes	No	No	No

As nouns, acute accent and ague are synonyms defined as:

acute accent and ague: a mark placed above a vowel to indicate pronunciation

Other synonyms of acute accent include acute.

acute accent (noun)	ague (noun)
a mark placed above a vowel to indicate pronunciation	a mark placed above a vowel to indicate pronunciation
	a fit of shivering or shaking
	successive stages of chills and fever that is a symptom of malaria