fanwort vs water-shield

fanwort and water-shield both are nouns.

Word	Noun	Adjective	Verb	Adverb
fanwort	Yes	No	No	No
water-shield	Yes	No	No	No

As nouns, fanwort and water-shield are synonyms defined as:

fanwort and water-shield: common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers

Other synonyms of fanwort include Cabomba caroliniana.

fanwort (noun)	water-shield (noun)
common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers	common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers
	aquatic plant with floating oval leaves and purple flowers; in lakes and slow-moving streams; suitable for aquariums