crockery vs egg cup

crockery and egg cup both are nouns.

Word	Noun	Adjective	Verb	Adverb
crockery	Yes	No	No	No
egg cup	Yes	No	No	No

As nouns, egg cup is a hyponym of crockery; that is, egg cup is a word with a more specific, narrower meaning than crockery:

Other hyponyms of crockery include china, chinaware, cup, dish, eggcup, ovenware.

crockery (noun)	egg cup (noun)
tableware (eating and serving dishes) collectively	dishware consisting of a small cup for serving a boiled egg