mackinaw vs Mackinaw boat

mackinaw and Mackinaw boat both are nouns.

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

As nouns, mackinaw and Mackinaw boat are synonyms defined as:

mackinaw and Mackinaw boat: a flat-bottomed boat used on upper Great Lakes

mackinaw (noun)	Mackinaw boat (noun)
a heavy woolen cloth heavily napped and felted, often with a plaid design	a flat-bottomed boat used on upper Great Lakes
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