egg foo yong vs egg fu yung

egg foo yong and egg fu yung both are nouns.

Word	Noun	Adjective	Verb	Adverb
egg foo yong	Yes	No	No	No
egg fu yung	Yes	No	No	No

As nouns, egg foo yong and egg fu yung are synonyms defined as:

egg foo yong and egg fu yung: omelet containing onions and celery and chopped meat or fish

egg foo yong (noun)	egg fu yung (noun)
omelet containing onions and celery and chopped meat or fish	omelet containing onions and celery and chopped meat or fish