boat vs mackinaw

boat and mackinaw both are nouns.

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

As nouns, mackinaw is a hyponym of boat; that is, mackinaw is a word with a more specific, narrower meaning than boat:

boat (noun)	mackinaw (noun)
a small vessel for travel on water	a heavy woolen cloth heavily napped and felted, often with a plaid design
a dish (often boat-shaped) for serving gravy or sauce	a flat-bottomed boat used on upper Great Lakes
	a thick plaid blanket formerly used in the northwestern United States
	a short plaid coat made of made of thick woolen material

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