quill

US /kwɪl/
UK /kwɪl/
"quill" picture
1.

a main wing or tail feather of a bird

:
The artist used a bird's quill to draw fine lines.
He found a large eagle quill on the forest floor.
2.

a pen made from a bird's feather, used for writing before the invention of fountain pens

:
She dipped her quill into the inkwell and began to write a letter.
Ancient scribes often used quills for their manuscripts.
3.

a sharp, stiff hair or spine, especially of a porcupine or hedgehog

:
The porcupine raised its quills in defense.
Be careful, the hedgehog's quills are very sharp.