Real Dictionary

quill
countable noun: A quill is a pen made from a bird's feather.

quill in American English
any of the large, stiff wing or tail feathers of a bird
to form with or into quillings
noun: one of the large feathers of the wing or tail of a bird
transitive verb: to arrange (fabric) in flutes or cylindrical ridges, as along the edge of a garment, hem, etc.

quill in British English
to wind (thread, yarn, etc) onto a spool or bobbin
noun: any of the large stiff feathers of the wing or tail of a bird