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

Example Sentences

While not pink in colour, the name of the April full Moon harks back to ancient traditions before the advent of the modern calendar.

From BBC • Apr. 2, 2026

Banks, which typically follow the federal calendar, will generally be open as well.

From MarketWatch • Apr. 1, 2026

Against this tense backdrop, Rome is preparing to welcome thousands of worshippers for the Easter celebrations, the most important feast in the Christian calendar, which commemorates the Resurrection of Jesus Christ.

From Barron's • Apr. 1, 2026

Chief Executive Elliott Hill said Nike’s turnaround efforts will continue to affect results this calendar year.

From The Wall Street Journal • Mar. 31, 2026

Creating a stable calendar was a problem for most ancient peoples, because they generally started out with a lunar calendar: the length of a month was the time between successive full moons.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Related Words

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