Groundhog Day: Meaning and Definition of

Ground'hog Day"

Pronunciation: [key]
  1. February 2, in most parts of the U.S., the day on which, according to legend, the groundhog first emerges from hibernation. If it is a sunny day and the groundhog sees its shadow, six more weeks of wintry weather are predicted.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.