calendar
Americannoun
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a table or register with the days of each month and week in a year.
He marked the date on his calendar.
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any of various systems of reckoning time, especially with reference to the beginning, length, and divisions of the year.
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a list or register, especially one arranged chronologically, as of appointments, work to be done, or cases to be tried in a court.
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a list, in the order to be considered, of bills, resolutions, etc., brought before a legislative body.
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Obsolete. a guide or example.
verb (used with object)
noun
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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
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a table showing any such arrangement, esp as applied to one or more successive years
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a list, register, or schedule of social events, pending court cases, appointments, etc
verb
Other Word Forms
Derived Forms
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calendarialadjective
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calendarianadjective
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calendaricadjective
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calendricadjective
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calendricaladjective
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uncalendaredadjective
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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calendarsimple
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calendarssimple
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have calendaredperfect
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has calendaredperfect
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am calendaringprogressive
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are calendaringprogressive
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is calendaringprogressive
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have been calendaringperfect progressive
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has been calendaringperfect progressive
Past
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calendaredsimple
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had calendaredperfect
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was calendaringprogressive
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were calendaringprogressive
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had been calendaringperfect progressive
Future
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.
Vocabulary lists containing calendar
Mexico - Introductory
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Mexico - Middle School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It’s already turned the page on its calendar, adopting a summer-to-spring season format that will better blend with the global game.
From Los Angeles Times • Jun. 28, 2026
Micron is on an unorthodox reporting cadence, so its published results don’t line up with the traditional calendar.
From MarketWatch • Jun. 28, 2026
Those discussions gave Micron enough visibility to project the shortage running beyond 2027, whereas the company had previously been keeping its comments about industry conditions limited to the current calendar year.
From The Wall Street Journal • Jun. 26, 2026
And with the typically month and quarter-end volatility about to begin, with just three trading days left on the calendar, the tech sector in general remains on edge.
From Barron's • Jun. 26, 2026
And I guess all that detention this week had thrown off my mental calendar, because I totally forgot that the Friday Thing would be happening in town.
From "Maybe He Just Likes You" by Barbara Dee
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.