water ice vs frappe

water ice and frappe both are nouns.

Word	Noun	Adjective	Verb	Adverb
water ice	Yes	No	No	No
frappe	Yes	No	No	No

As nouns, frappe is a hypernym of water ice; that is, frappe is a word with a broader meaning than water ice:

water ice: an ice containing no milk but having a mushy consistency; usually made from fruit juice
frappe: a frozen dessert with fruit flavoring (especially one containing no milk)

Other hypernyms of water ice include ice.

water ice (noun)	frappe (noun)
an ice containing no milk but having a mushy consistency; usually made from fruit juice	a frozen dessert with fruit flavoring (especially one containing no milk)
water frozen in the solid state	thick milkshake containing ice cream
	liqueur poured over shaved ice