pronunciation vs orthoepy

pronunciation and orthoepy both are nouns.

Word	Noun	Adjective	Verb	Adverb
pronunciation	Yes	No	No	No
orthoepy	Yes	No	No	No

As nouns, pronunciation and orthoepy are synonyms defined as:

pronunciation and orthoepy: the way a word or a language is customarily spoken

pronunciation (noun)	orthoepy (noun)
the manner in which someone utters a word	a term formerly used for the part of phonology that dealt with the `correct' pronunciation of words and its relation to `correct' orthography
the way a word or a language is customarily spoken	the way a word or a language is customarily spoken