calendar

American  

[kal-uhn-der] / ˈkæl ən dər /

noun

1. a table or register with the days of each month and week in a year.

   He marked the date on his calendar.

2. any of various systems of reckoning time, especially with reference to the beginning, length, and divisions of the year.

3. a list or register, especially one arranged chronologically, as of appointments, work to be done, or cases to be tried in a court.

   Synonyms:

   program, schedule, diary

4. a list, in the order to be considered, of bills, resolutions, etc., brought before a legislative body.

5. Obsolete. a guide or example.

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verb (used with object)

1. to enter in a calendar; register.

calendar British  

/ kæˈlɛndrɪkəl, ˈkælɪndə /

noun

1. a system for determining the beginning, length, and order of years and their divisions See also Gregorian calendar Jewish calendar Julian calendar Revolutionary calendar Roman calendar

2. a table showing any such arrangement, esp as applied to one or more successive years

3. a list, register, or schedule of social events, pending court cases, appointments, etc

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verb

1. (tr) to enter in a calendar; schedule; register

Other Word Forms

• calendarial
  adjective
• calendarian
  adjective
• calendaric
  adjective
• calendric
  adjective
• calendrical
  adjective
• uncalendared
  adjective

Etymology

Origin of calendar

First recorded in 1175–1225; Middle English calender, from Anglo-French, from Latin calendārium “account book,” equivalent to Calend(ae) calends (when debts were due) + -ārium -ary

Explanation

A calendar is a chart that organizes the year into days, weeks or months. It's also a list of appointments or activities, like the calendar for the club that lists when the bands are playing. A calendar might hang on your refrigerator, where you can scribble your appointments on the squares. If you have something scheduled every day of the week, your calendar is full. In that case you might keep track of your dates with a calendar on your computer (or phone). Don't misspell it with an er ending, or you're referring to a machine that presses cloth. If you remember that "DAys" are in calenDArs, then you'll know to end it with a DAr.

Example Sentences

"It's difficult to manage that calendar in the Champions League."

From BBC • May 6, 2026

The frenzy of the new attention economy has only inflated the importance of the Tony Awards — to the detriment of the Broadway calendar.

From Los Angeles Times • May 5, 2026

If you had started taking your RMDs before you died, your beneficiaries must take an RMD each year, beginning the calendar year after the original account owner’s death.

From MarketWatch • May 5, 2026

In that light, the latest nonfarm payrolls report for April, due Friday, will mark the highlight of the coming week’s data calendar.

From The Wall Street Journal • May 1, 2026

The calendar had a picture of a colorful Aztec warrior standing guard over an Aztec princess whose eyes were closed; both were dressed in plumed and colorful costumes.

From "Breaking Through" by Francisco Jiménez

Related Words

• agenda
• almanac
• card
• chronology
• diary
• docket
• journal
• lineup
• list
• program
• table
• timetable