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Decade vs Decades - What's the difference?

decade | decades |

As nouns the difference between decade and decades

is that decade is a series or group of ten things while decades is plural of lang=en.

decade

English

Noun

(en noun)
  • A series or group of ten things.
    • a decade of soldiers
  • A period of ten years.
  • *
    • The repeated exposure, over decades , to most taxa here treated has resulted in repeated modifications of both diagnoses and discussions, as initial ideas of the various taxa underwent—often repeated—conceptual modification.
  • * {{quote-magazine
    • , year=1979 , date=December , title=Museums , magazine=Texas Monthly , volume=7 , issue=12 , page=22 citation , passage=Thru May: 1920s — The Decade That Roared. New exhibition portraying historical events and everyday life during the Roaring Twenties.}}
  • * {{quote-magazine, date=2013-03
    • , author=David S. Senchina , title=Athletics and Herbal Supplements , volume=101, issue=2, page=134 , magazine=(American Scientist) citation , passage=Athletes' use of herbal supplements has skyrocketed in the past two decades .}}
  • * 2002 , , The Great Nation , Penguin 2003, p. 481:
    • The year was divided up into twelve months renamed after the seasons [...]; each month comprised three ‘decades ’ of ten days – with the décadi replacing Sundays as a day of rest; and each day was reconsecrated to a natural product or farming tool or technique.
  • (Roman Catholicism) A series of ten Hail Marys in the rosary.
  • (physics, engineering) The interval between any two quantities having the ratio 10 to 1.
    • There are decades between 1.8 and 18, between 25 and 250 and between 0.03 and 0.003.

    Usage notes

    Unlike centuries or millennia (which properly run from xxx1 to xxx0), decades are an informal unit generally taken to run from xxx0 to xxx9. That is, the first century began in the year 1 and ended in the year 100 but the Nineties are those years whose name includes the word "ninety": '90, '91, '92...

    Synonyms

    * (ten years)

    Related terms

    * decennial, decadal

    decades

    English

    Noun

    (head)
  • .
  • * {{quote-magazine, date=2013-08-17, volume=408, issue=8849, magazine=(The Economist)
    • , title= One nation, behind bars , passage=For decades American politicians have assumed that mass incarceration works, wooing voters with ever-tougher sentencing laws. The dramatic fall in crime since the 1990s has persuaded many that they were right. Locking up the worst criminals while they are young, fit and dangerous clearly makes America safer. But keeping sad cases ----