boat vs wear round

boat is a noun but wear round is not a noun.

Word	Noun	Adjective	Verb	Adverb
boat	Yes	No	Yes	No
wear round	No	No	Yes	No

boat (noun)	wear round (noun)
a small vessel for travel on water
a dish (often boat-shaped) for serving gravy or sauce

boat (verb)	wear round (verb)
ride in a boat on water	turn into the wind