pontoon vs boat

pontoon and boat both are nouns.

Word	Noun	Adjective	Verb	Adverb
pontoon	Yes	No	No	No
boat	Yes	No	Yes	No

pontoon (noun)	boat (noun)
a float supporting a seaplane	a small vessel for travel on water
(nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge	a dish (often boat-shaped) for serving gravy or sauce

pontoon (verb)	boat (verb)
	ride in a boat on water