Thesaurus:year

English

(2-year period): biennium
(3-year period): triennium
(4-year period): quadrennium
(5-year period): luster, lustrum, quinennium, quinquennium, quinquenniad, quintennium
(6-year period): sexennium
(7-year period): septennium, septenniad
(8-year period): octennium
(9-year period): novennium
(10-year period): decade, decennium
(17-year period): septendecennium
(20-year period): vicennium
(30-year period): tricennium
(50-year period): quincennium
(100-year period): centennium, century, yearhundred
(200-year period): bicentennium
(300-year period): tricentennium
(500-year period): quincentennium
(1 thousand year period): millennium, kiloyear, yearthousand
(3 thousand year period): termillennium, trimillennium
(1 million year period): megayear, mega-annum
(1 billion year period): gigayear, gigannum
(1 trillion year period): terrennium