Megaannum

//ˌmɛɡəˈænəm// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Alternative spelling of mega-annum. alt-of, alternative

Etymology

From mega- + annum.

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