Agah is a Persian word that means "informed" or "knowledgeable". There are several synonyms that can be used instead of agah to convey a similar meaning. For instance, one can use the words "aware", "informed", "educated", "learned", "knowing", "knowledgeable" or "well-versed" to describe an individual who is well-informed or knowledgeable about a particular subject matter. These words can be used in various contexts, whether in an academic or informal setting. No matter which synonym is used, they all capture the essence of what it means to be agah, which is to have knowledge and understanding about a subject matter.