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Noun: twelvemonth  'twelv,múnth
  1. A period of time containing 365 (or 366) days
    - year, yr

Derived forms: twelvemonths

Type of: period, period of time, time period, time span

Part of: decade, decennary, decennium

Encyclopedia: Twelvemonth

Nearest

Twelfth day
twelfth man
Twelfth night
twelfth part
Twelfthtide
twelve
twelve noon
Twelve Olympians
Twelve Tribes of Israel
twelvemo
twelvemonth
twelve-sided
twelve-tone music
twelve-tone system
twenties
twentieth
twentieth century
twenty
twenty dollar bill
twenty percent
twenty-eight