Aga vs Agha

Aga and Agha both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aga	Yes	No	No	No
Agha	Yes	No	No	No

As nouns, Aga and Agha are synonyms defined as:

Aga and Agha: title for a civil or military leader (especially in Turkey)

Aga (noun)	Agha (noun)
title for a civil or military leader (especially in Turkey)	title for a civil or military leader (especially in Turkey)