Meaning of CALENDAR in English
/ ˈkælɪndə(r); NAmE / noun
a page or series of pages showing the days, weeks and months of a particular year, especially one that you hang on a wall :
a calendar for 2006
—see also Advent calendar
( NAmE ) a record of what you have to do each day; the book in which you write this down
[ usually sing. ] a list of important events or dates of a particular type during the year :
This is one of the biggest weeks in the racing calendar.
a system by which time is divided into fixed periods, showing the beginning and end of a year :
the Islamic calendar
Middle English : from Old French calendier , from Latin kalendarium account book, from kalendae , calendae first day of the month (when accounts were due and the order of days was proclaimed); related to Latin calare and Greek kalein call, proclaim.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005