dyke vs dam

dyke and dam both are nouns.

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

As nouns, dyke and dam are synonyms defined as:

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

Other synonyms of dyke include dike.

dyke (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

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