mackinaw vs Mackinaw coat

mackinaw and Mackinaw coat both are nouns.

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

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

mackinaw and Mackinaw coat: a short plaid coat made of made of thick woolen material

mackinaw (noun)	Mackinaw coat (noun)
a heavy woolen cloth heavily napped and felted, often with a plaid design	a short plaid coat made of made of thick woolen material
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