WordReference Random House Unabridged Dictionary of American English © 2026
Ground′hog Day′,
- 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.
- 1870–75, American.
'Groundhog Day' also found in these entries (note: many are not synonyms or translations):