"calendar" in the noun sense
1. calendar
a system of timekeeping that defines the beginning and length and divisions of the year
2. calendar
a list or register of events (appointments or social events or court cases etc
"I have you on my calendar for next Monday"
3. calendar
a tabular array of the days (usually for one year)
"calendar" in the verb sense
1. calendar
enter into a calendar
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License