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decennium Line breaks: de¦cen|nium
Pronunciation: /dɪˈsɛnɪəm/

Definition of decennium in English:

noun (plural decennia dɪˈsɛnɪə or decenniums)

A decade.
Example sentences
  • A selected number of variables in those two years is assumed to represent the outcomes of earlier decennia of colonization.
  • McConachie envisions a predominantly ‘elite’ audience in the stock companies in the Northeast of the USA in the first decennia of the nineteenth century, who abandoned the theatres for opera in the 1830s because of the star system.
  • This resistance tended to increase in the later decennia of the nineteenth century, due to the intensification of cultural differences known as the ‘pillarisation-process’.


Late 17th century: from Latin, from decem 'ten' + annus 'year'.

Definition of decennium in:

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