See more synonyms for coat on
  1. an outer garment with sleeves, covering at least the upper part of the body: a new fur coat; a coat for formal wear.
  2. a natural integument or covering, as the hair, fur, or wool of an animal, the bark of a tree, or the skin of a fruit.
  3. a layer of anything that covers a surface: That wall needs another coat of paint.
  4. a mucous layer covering or lining an organ or connected parts, as on the tongue.
  5. coat of arms.
  6. Archaic. a petticoat or skirt.
  7. Obsolete.
    1. a garment indicating profession, class, etc.
    2. the profession, class, etc., so indicated.
verb (used with object)
  1. to cover with a layer or coating: He coated the wall with paint. The furniture was coated with dust.
  2. to cover thickly, especially with a viscous fluid or substance: Heat the mixture until it coats a spoon. The boy was coated with mud from head to foot.
  3. to cover or provide with a coat.

Origin of coat

1250–1300; Middle English cote < Anglo-French, Old French < Germanic; compare German Kotze, Old Saxon cott woolen coat
Related formscoat·er, nouncoat·less, adjectivere·coat, verb (used with object)re·coat, noun

Synonyms for coat

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for coat

Contemporary Examples of coat

Historical Examples of coat

  • His nephew, with his coat stripped off, was sitting on the side of the bed.

    Brave and Bold

    Horatio Alger

  • He had stripped off his coat and waistcoat, and was busily at work in his shirt-sleeves.

    Little Daffydowndilly

    Nathaniel Hawthorne

  • Dare you to wear your brother's coat without the crescent which should stamp you as his cadet.

    The White Company

    Arthur Conan Doyle

  • How read you that coat which hangs over yonder galley, Alleyne?

    The White Company

    Arthur Conan Doyle

  • Some of them, I have been given to understand, were actually in the pocket of her coat.

    Within the Law

    Marvin Dana

British Dictionary definitions for coat


  1. an outdoor garment with sleeves, covering the body from the shoulder to waist, knee, or foot
  2. any similar garment, esp one forming the top to a suit
  3. a layer that covers or conceals a surfacea coat of dust
  4. the hair, wool, or fur of an animal
  5. short for coat of arms
  6. on the coat Australian in disfavour
  1. (tr often foll by with) to cover (with) a layer or covering
  2. (tr) to provide with a coat

Word Origin for coat

C16: from Old French cote of Germanic origin; compare Old Saxon kotta, Old High German kozzo
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for coat

early 14c., "outer garment," from Old French cote "coat, robe, tunic, overgarment," from Frankish *kotta "coarse cloth" or some other Germanic source (cf. Old Saxon kot "woolen mantle," Old High German chozza "cloak of coarse wool," German Kotze "a coarse coat"), of unknown origin. Transferred to animal's natural covering late 14c. Extended 1660s to a layer of any substance covering any surface. Spanish, Portuguese cota, Italian cotta are Germanic loan-words.


late 14c., "to provide with a coat," from coat (n.). Meaning "to cover with a substance" is from 1753. Related: Coated; coating.

Online Etymology Dictionary, © 2010 Douglas Harper

coat in Medicine


  1. The outer covering or enveloping layer or layers of an organ or part.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.