dike vs dam

dike and dam both are nouns.

Word	Noun	Adjective	Verb	Adverb
dike	Yes	No	Yes	No
dam	Yes	No	Yes	No

As nouns, dike and dam are synonyms defined as:

dike and dam: a barrier constructed to contain the flow of water or to keep out the sea

Other synonyms of dike include dyke.

dike (noun)	dam (noun)
a barrier constructed to contain the flow of water or to keep out the sea	female parent of an animal especially domestic livestock
(slang) offensive term for a lesbian who is noticeably masculine	a barrier constructed to contain the flow of water or to keep out the sea
	a metric unit of length equal to ten meters

dike (verb)	dam (verb)
enclose with a dike	obstruct with, or as if with, a dam