/ Dictionary / Index K knobby: Meaning and Definition of Find definitions for: knob•by Pronunciation: (nob'ē), [key] — -bi•er, -bi•est. full of or covered with knobs: the knobby trunk of a tree. shaped like a knob. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: knobby (Thesaurus) knobbling roll knob celery Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language