nib

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The sharpened point of a quill pen.
2. n. A tapered point of a pen, designed to be inserted into a penholder or fountain pen.
3. n. A sharp point or tip.
4. n. A bird's beak or bill.

Century Dictionary and Cyclopedia

1. n. The beak or bill, as of a bird; neb.
2. n. The point of anything, as the pointed end of a pen or the extremity or toe of a crowbar.
3. n. A small pen of the usual form for insertion in a penholder.
4. n. The handle of a scythesnath, to which it is attached by a sliding ring that can be tightened by a bolt or wedge.
5. n. A separate adjustable limb of a permutation-key.
6. n. In the picker of a loom fitted with a drop-box for carrying two or more shuttles, a projection from the back side of the picker, working in a groove or guide-way, and coöperating with the pickerspindle to reduce friction and cause the picker to strike squarely against the end of the shuttle.
7. n. See coffee-nib and cacao.
8. To furnish with a nib or point; mend or trim the nib of, as a pen.
9. To nibble.
10. n. The tip or growing point of an oyster-shell.
11. n. The button or nodule of graphitic carbon which is sometimes deposited upon the negative terminal by an electric arc between carbon poles.

Wiktionary

1. n. The tip of a pen or tool that touches the surface.
2. n. The bill or beak of a bird; the neb.
3. n. Bits of trapped dust or other foreign material that form imperfections in painted or varnished surfaces.
4. n. Partially processed cocoa bean.

GNU Webster's 1913

1. n. A small and pointed thing or part; a point; a prong.
2. n. (Zoöl.) The bill or beak of a bird; the neb.
3. n. The points of a pen; also, the pointed part of a pen; a short pen adapted for insertion in a holder.
4. n. Prov. Eng., Prov. Eng. One of the handles which project from a scythe snath the shaft of a wagon.
5. n. See his nibs, below.
6. v. To furnish with a nib; to point; to mend the point of.

WordNet 3.0

1. n. horny projecting mouth of a bird
2. n. the writing point of a pen