one of the many soft light parts covering a bird’s body 羽毛；翎毛 
a peacock feather 孔雀羽毛 tail/flight/wing feathers 尾巴/飞行/翅膀羽毛 a feather pillow (= one containing feathers) 羽绒枕头
Extra ExamplesTopics Birdsb2I had to pluck the dead hen's feathers. 我不得不拔掉死母鸡的羽毛。 Its feathers were ruffled by the chill breeze. 寒风吹乱了它的羽毛。 The chicks have grown their adult feathers. 这些小鸡已经长出了成年鸡的羽毛。 The owl fluffed out its feathers. 猫头鹰抖开了羽毛。 a fledgling with new flight feathers 刚长出飞羽的幼鸟 a swan preening its feathers 一只正在用喙整理羽毛的天鹅 the downy feathers on the duck's breast 鸭子胸部的绒羽
Oxford Collocations Dictionaryadjective- breast
- neck
- tail
- …
- preen
- fluff
- fluff out
- …
- bed
- mattress
- pillow
- …
- as light as a feather
Word OriginOld English fether, of Germanic origin; related to Dutch veer and German Feder, from an Indo-European root shared by Sanskrit patra ‘wing’, Latin penna ‘feather’, and Greek pteron, pterux ‘wing’.
Idioms
birds of a feather (flock together)
- (saying)
people of the same sort (are found together) 同类的人（聚在一起）；物以类聚
a feather in your cap
an action that you can be proud of 可引以自豪的行为
ruffle somebody’s/a few feathers
smooth (somebody’s) ruffled feathers
to make somebody feel less angry or offended 使息怒；劝解
you could have knocked me down with a feather
- (informal)
used to express surprise （表示惊奇）