anomia vs aphasia

anomia and aphasia both are nouns.

Word	Noun	Adjective	Verb	Adverb
anomia	Yes	No	No	No
aphasia	Yes	No	No	No

As nouns, aphasia is a hypernym of anomia; that is, aphasia is a word with a broader meaning than anomia:

anomia: inability to name objects or to recognize written or spoken names of objects
aphasia: inability to use or understand language (spoken or written) because of a brain lesion

anomia (noun)	aphasia (noun)
inability to name objects or to recognize written or spoken names of objects	inability to use or understand language (spoken or written) because of a brain lesion