de·cade | \ ˈde-ˌkād , de-ˈkād ; especially sense 1b ˈde-kəd \

Definition of decade 

1 : a group or set of 10 his prisoners were divided into decades —William Godwin : such as

a : a period of 10 years has been teaching for over a decade the decade of the twenties

b Roman Catholicism : a division of the rosary that consists primarily of 10 Hail Marys

2 mathematics : a ratio of 10 to 1 : order of magnitude

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Other words from decade

decadal \ˈde-kə-dᵊl \ adjective

Examples of decade in a Sentence

The war lasted nearly a decade. The bridge was built a decade ago. The decade of the 1920s runs from January 1, 1920 to December 31, 1929. the first decade of the 21st century There have been a lot of changes during the past two decades.
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Recent Examples on the Web

Catalonia remained part of Spain but the secession attempt unfolded the worst crisis in more than four decades of Spanish democracy. Aritz Parra, The Seattle Times, "Spanish, Catalan leaders meet to bridge gap over secession," 9 July 2018 Shaina Gross, president of Susan G. Komen San Diego, said that because monitoring and treatment periods stretch up to a decade into the past, the number of women or men who could potentially benefit from dropping caps could be in the thousands. Paul Sisson,, "Komen, Atkins celebrate elimination of cancer treatment limits," 13 July 2018 Actor Christopher Lloyd has had an illustrious career that spans over four decades and more than 200 roles. Laura Latzko, azcentral, "A night with Christopher Lloyd of 'Back to the Future,' plus more fun events this weekend," 10 July 2018 Your information will be used as described in our Privacy Notice SEABROOK - For nearly the last decade, there’s only been one Little League organization that seems to know how to keep a lid on Pearland Little League’s winning tradition. Robert Avery, Houston Chronicle, "Pearland East all-stars succumb to Post Oak’s big fifth inning," 9 July 2018 Garner and Affleck have three children and were together for a decade. Hal Boedeker,, "Jennifer Garner talks tabloids, family farm," 14 July 2018 Gapp could face up to several decades behind bars and more than $100,000 in fines. Steven Martinez, Milwaukee Journal Sentinel, "Jury finds Dousman man guilty of homicide for role in girlfriend's fatal overdose," 13 July 2018 Vietnam’s normalisation of relations came in 1995, just two decades after the two countries ended their war. The Economist, "Is North Korea the next Vietnam? Don’t count on it," 12 July 2018 Now the most distinguished weekly ranking that runs all season, the poll enters its 83rd year of existence in 2018, having outlasted the BCS’s 16-year life by more than six decades. Ross Dellenger,, "Inside the AP's Fateful 2004 Decision to Withdraw Its Poll From the BCS Formula," 12 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decade.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of decade

15th century, in the meaning defined at sense 1

History and Etymology for decade

Middle English, from Middle French décade, from Late Latin decad-, decas, from Greek dekad-, dekas, from deka — see deca-

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Statistics for decade

Last Updated

11 Sep 2018

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Time Traveler for decade

The first known use of decade was in the 15th century

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English Language Learners Definition of decade

: a period of 10 years; especially : a 10-year period beginning with a year ending in 0


de·cade | \ ˈde-ˌkād , de-ˈkād \

Kids Definition of decade

: a period of ten years

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Comments on decade

What made you want to look up decade? Please tell us where you read or heard it (including the quote, if possible).


the setting in which something occurs

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