Holonyms: petasecond < giga-annum, gigayear < exasecond
Source: wiktionary
Mega-annum
//ˌmɛɡəˈænəm//
Synonyms for "mega-annum" (2 found)
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Closest matches (1)
Noun(1 words)
Related words (1)
Noun(1 words)
Related word relations
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Sample sentences
2 total sentences available.
Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year < gigasecond < century < kiloannum, kiloyear, millennium < terasecond
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.