Pen

1. Fig.: A writer, or his style; as, he has a sharp pen.
2. A female swan.
3. A feather.
4. A small inclosure; as, a pen for sheep or for pigs.
5. The internal shell of a squid.
6. A wing.
7. To write; to compose and commit to paper; to indite; to compose; as, to pen a sonnet.
8. An instrument used for writing with ink, formerly made of a reed, or of the quill of a goose or other bird, but now also of other materials, as of steel, gold, etc. Also, originally, a stylus or other instrument for scratching or graving.
9. To shut up, as in a pen or cage; to confine in a small inclosure or narrow space; to coop up, or shut in; to inclose.