wafer vs cookie

wafer and cookie both are nouns.

Word	Noun	Adjective	Verb	Adverb
wafer	Yes	No	No	No
cookie	Yes	No	No	No

As nouns, cookie is a hypernym of wafer; that is, cookie is a word with a broader meaning than wafer:

Other hypernyms of wafer include biscuit, cooky.

wafer (noun)	cookie (noun)
a small thin crisp cake or cookie	a short line of text that a web site puts on your computer's hard drive when you access the web site
thin disk of unleavened bread used in a religious service (especially in the celebration of the Eucharist)	any of various small flat sweet cakes
a small adhesive disk of paste; used to seal letters	the cook on a ranch or at a camp