water nymph vs Greek mythology

water nymph and Greek mythology both are nouns.

Word	Noun	Adjective	Verb	Adverb
water nymph	Yes	No	No	No
Greek mythology	Yes	No	No	No

water nymph (noun)	Greek mythology (noun)
(Greek mythology) any nymph of the water	the mythology of the ancient Greeks
a fairy that inhabits water
submerged aquatic plant having narrow leaves and small flowers; of fresh or brackish water
a water lily having large leaves and showy fragrant flowers that float on the water; of temperate and tropical regions