coconut water vs coconut milk

coconut water and coconut milk both are nouns.

Word	Noun	Adjective	Verb	Adverb
coconut water	Yes	No	No	No
coconut milk	Yes	No	No	No

As nouns, coconut water and coconut milk are synonyms defined as:

coconut water and coconut milk: clear to whitish fluid from within a fresh coconut

coconut water (noun)	coconut milk (noun)
clear to whitish fluid from within a fresh coconut	clear to whitish fluid from within a fresh coconut
	white liquid obtained from compressing fresh coconut meat