yolk vs egg

yolk and egg both are nouns.

Word	Noun	Adjective	Verb	Adverb
yolk	Yes	No	No	No
egg	Yes	No	Yes	No

yolk (noun)	egg (noun)
nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg)	animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds
the yellow spherical part of an egg that is surrounded by the albumen	one of the two male reproductive glands that produce spermatozoa and secrete androgens
	oval reproductive body of a fowl (especially a hen) used as food

yolk (verb)	egg (verb)
	coat with beaten egg
	throw eggs at