1. [ noun ] a list or register of events (appointments or social events or court cases etc)

"I have you on my calendar for next Monday"

Related terms: list docket
2. [ noun ] a system of timekeeping that defines the beginning and length and divisions of the year
Related terms: arrangement lunisolar_calendar lunar_calendar solar_calendar embolism
3. [ verb ] enter into a calendar
Related terms: schedule
4. [ noun ] a tabular array of the days (usually for one year)
Related terms: table perpetual_calendar
Similar spelling:   calender