The meaning of FEATHER is any of the light, horny epidermal outgrowths that form the external covering of the body of birds. How to use feather in a sentence.

Feathers are among the most complex integumentary appendages found in vertebrates and are formed in tiny follicles in the epidermis, or outer skin layer, that produce keratin proteins.

1. a feather in one's cap, a praiseworthy achievement; honor. 2. feather one's nest, to enrich oneself by exploiting one's favorable or privileged position.

FEATHER definition: 1. one of the many soft, light things that cover a bird's body, consisting of a long, thin, central…. Learn more.

Idioms in fine or high feather, in good form, humor, or health: feeling in fine feather. Idioms ruffle someone's feathers, to anger, upset, or annoy (another person).

a bird's feather or artificial substitute fitted to an arrow to direct its flight

Dec 14, 2025 · feather (plural feathers) A branching, hair-like structure that grows on the bodies of birds, used for flight, swimming, protection and display. quotations