Oxford Advanced American Dictionary

Definition of coat noun from the Oxford Advanced Learner's Dictionary

Oxford3000

coat

noun
coat pronunciation English kəʊt coat pronunciation American koʊt
 
1 a piece of outdoor clothing that is worn over other clothes to keep warm or dry. Coats have sleeves and may be long or shorta fur/leather coata long winter coatto put on/take off your coat see also duffel coat, greatcoat, housecoat, overcoat, petticoat, raincoat, trench coat2 (North American English) (old-fashioned in British English) a jacket that is worn as part of a suit see also frock coat, morning coat, tailcoat, waistcoat3 the fur, hair or wool that covers an animal's bodya dog with a smooth/shaggy coatanimals in their winter coats (= grown long for extra warmth)4 a layer of paint or some other substance that covers a surfaceto give the walls a second coat of paint see also topcoat, undercoat
Idioms

cut your coat according to your cloth

(saying) to do only what you have enough money to do and no moreWe wanted to buy a bigger house than this but it was a case of cutting our coat according to our cloth.