- the point, gist, or heart of something.
- a knob or protuberance.
- a lump or small piece: a nub of coal; a nub of pencil.
- a small mass of fibers produced on a card, dyed brilliant colors, and introduced into yarn during the spinning process.
- a small lump or protuberance
- a small piece or chunk
- the point or gist
- a small fibrous knot in yarn