Definition of month
- month Noun A period into which a year is divided, historically based on the phases of the moon. In the Gregorian calendar there are twelve months: January, February, March, April, May, June, July, August, September, October, November and December.
- month Noun A period of 30 days, 31 days, or some alternation thereof.
- month Noun A woman's period; menstrual discharge.