say it: MAK-uh-naw
mackinaw is a noun meaning "a short plaid coat made of made of thick woolen material". It carries 4 recorded senses.
a short plaid coat made of made of thick woolen material
a thick plaid blanket formerly used in the northwestern United States
a flat-bottomed boat used on upper Great Lakes
a heavy woolen cloth heavily napped and felted, often with a plaid design
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for mackinaw come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.