9 Grammatical Pitfalls


[dek-eyd; British also duh-keyd] /ˈdɛk eɪd; British also dəˈkeɪd/
a period of ten years:
the three decades from 1776 to 1806.
a period of ten years beginning with a year whose last digit is zero:
the decade of the 1980s.
a group, set, or series of ten.
Origin of decade
late Middle English
1425-75; late Middle English < Middle French < Late Latin decad- (stem of decas) < Greek dekad- (stem of dekás) group of ten, equivalent to dék(a) ten + -ad- -ade2
Related forms
half-decade, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for decade
  • But if it is to achieve the goal of development over the next decade, more reform will be needed.
  • We're now half a decade into mountain biking's dual-suspension dynasty.
  • Here's how much you'd have at the end of June if you had invested $100 a month into the five largest stock funds for a decade.
  • This publishing season kicks off a new decade—and things may never be the same.
  • All three of these scenarios are possible within a decade.
  • But the past decade has laid bare the limits of high-tech power.
  • Winter ends in the Arctic earlier than a decade ago.
  • There will be more people, Colleges will double their enrollments within the decade.
  • Environmentalists, an alien species until a decade or two ago, have settled in.
  • Crisp-fried chicken tacos have been the party entrée of choice here for almost a decade.
British Dictionary definitions for decade


/ˈdɛkeɪd; dɪˈkeɪd/
a period of ten consecutive years
a group or series of ten
Derived Forms
decadal, adjective
Word Origin
C15: from Old French, from Late Latin decad-, decas, from Greek dekas, from deka ten
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for decade

mid-15c., "ten parts" (of anything; originally in reference to the books of Livy), from Middle French décade (14c.), from Late Latin decadem (nominative decas), from Greek dekas (genitive dekados) "group of ten," from deka "ten" (see ten). Meaning "period of ten years" is 1590s in English.

Online Etymology Dictionary, © 2010 Douglas Harper
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