noun:any one of the light growths that make up the outer covering of the body of a bird
noun:any of the light horny epidermal outgrowths that form the external covering of the body of birds and that consist of a shaft bearing on each side a series of barbs which bear barbules which in turn bear barbicels commonly ending in hooked hamuli and interlocking with the barbules of an adjacent barb to link the barbs into a continuous vane
verb:to put a feather in or on (something)
used of ink or a printed impression
synonyms: kind, nature, species
Examples
When I found out I had won, 'you could have knocked me over with a feather'. [=I was extremely surprised or astonished]
a bird with a black 'cap' [=a black section of feathers on the top of its head]
She was accused of 'feathering her own nest' with the company's money.