Vicennium

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A period of twenty years. rare

Etymology

From Latin vicennium, from vīcennis (“20-year”) + -ium, from vīciēs (“20 times”) + annus (“year”) + -is (suffix forming compound adjectives). Equivalent to vicennial + -ium.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.