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

Aehr added that the customer has provided it with a forecast for additional systems, with follow-on orders possible later this calendar year.

From Barron's • Apr. 3, 2026

The outlook suggested another tough stretch for an S&P 500 energy sector that posted negative total returns in four of the past 10 calendar years.

From The Wall Street Journal • Apr. 3, 2026

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

I’d marked off nearly five months on my calendar.

From "Hattie Big Sky" by Kirby Larson

Related Words

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