Cindy asked in HealthDiet & Fitness · 2 months ago

100 years is a century and  10 years is a decade, what is five years called? Or do they start the measurement at 10?

3 Answers

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  • Zirp
    Lv 7
    2 months ago

    Lustrum.  Is that a word in English?

  • Andy C
    Lv 7
    2 months ago

    Always start at 1.  10 =1.  100 =1.

    5= 5 ones, unless using base 5, in which case 5 would equal 1.

  • 2 months ago

    Lustrum? There isn't really a word for it. You left out millennium which is 1,000 years by the way.

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