n. 1. A protuberance or knob. 2. A small lump. 3. The essence; the core: the nub of a story. [Variant of knub, probably from Low German knubbe, from Middle Low German, variant of knobbe.] nubby adj. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.