calendarˈkæl ən dər
a system of timekeeping that defines the beginning and length and divisions of the year
a list or register of events (appointments or social events or court cases etc)
"I have you on my calendar for next Monday"
a tabular array of the days (usually for one year)
enter into a calendar
Any system by which time is divided into days, weeks, months, and years.
A means to determine the date consisting of a document containing dates and other temporal information.
A list of planned events.
To set a date for a proceeding in court, usually done by a judge at a calendar call.
A calendar is a system of organizing days for social, religious, commercial, or administrative purposes. This is done by giving names to periods of time, typically days, weeks, months, and years. A date is the designation of a single, specific day within such a system. Periods in a calendar are usually, though not necessarily, synchronized with the cycle of the sun or the moon. Many civilizations and societies have devised a calendar, usually derived from other calendars on which they model their systems, suited to their particular needs. A calendar is also a physical device. This is the most common usage of the word. Other similar types of calendars can include computerized systems, which can be set to remind the user of upcoming events and appointments. A calendar can also mean a list of planned events, such as a court calendar. The English word calendar is derived from the Latin word kalendae, which was the Latin name of the first day of every month.