1. One of the twelve periods of time in which the calendar is divided ( the month of March). — Also termed calendar month; civil month. [Cases: Time
5. C.J.S. Time § 6.]
2. Any time period approximating 30 days (due one month from today).
3. At common law, a period of 28 days; the period of one revolution of the moon (a lunar month). — Also termed lunar month.
4. One-twelfth of a tropical year; the time it takes the sun to pass through one sign of the zodiac, usu. approximating 30 days (a solar month). — Also termed solar month.