mackinaw

(noun) a short plaid coat made of made of thick woolen material. Synonyms: Mackinaw coat.

(noun) a thick plaid blanket formerly used in the northwestern United States. Synonyms: Mackinaw blanket.

(noun) a flat-bottomed boat used on upper Great Lakes. Synonyms: Mackinaw boat.

(noun) a heavy woolen cloth heavily napped and felted, often with a plaid design.