/ Dictionary / Index C collective behavior: Meaning and Definition of Find definitions for: collec'tive behav'ior Pronunciation: [key] — Sociol. Sociol. the spontaneous, unstructured, and temporary behavior of a group of people in response to the same event, situation, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. collective bargaining collective farm Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language