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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uncalendaredadjective
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calendaricadjective
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calendarianadjective
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calendricadjective
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calendarialadjective
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calendricaladjective
Conjugated Forms
Present
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have calendaredperfect
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has calendaredperfect 3rd person singular
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calendarssingular 3rd person
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is calendaringprogressive 3rd person singular
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am calendaringprogressive 1st person singular
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calendaringparticiple
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has been calendaringperfect progressive 3rd person singular
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have been calendaringperfect progressive
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are calendaringprogressive
Past
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had calendaredperfect
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was calendaringprogressive singular
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were calendaringprogressive plural
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had been calendaringperfect progressive
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calendaredparticiple
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calendaredsimple
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.
Google’s announcements on Tuesday also emphasized the rollout of consumer AI agents through Gemini Spark, which can interact seamlessly across the entire Google ecosystem of Gmail, Drive, Calendar, Chrome and third-party applications.
From MarketWatch • May 20, 2026
Calendar year 2026 sales are expected to rise about 11% over 2025 levels, exceeding 2025’s expected 10% growth.
From Barron's • Dec. 24, 2025
Users will also have to give Gemini permission to access their services and apps like Google Calendar.
From Los Angeles Times • Nov. 5, 2025
Environmentalists have tried to rebrand October as “Leave the Leaves Month ” What, it wasn’t on your shared family Google Calendar?
From The Wall Street Journal • Oct. 16, 2025
“The End Days. How do you know? Some list? Crystal ball? Calendar from the future?”
From "They Both Die at the End" by Adam Silvera
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.
