bimillennium Definition

bimillenary, anniversary, period of time, birthday, jubilarian, octocentenary, time period, jubilar, anniversarily, legal holiday, semicentennial, celebration, victory day, commemoration, columbus day, religious holiday, calendar month, independence day, merrymake, birthnight, festlich, marriage ceremony, religious festival, jewish holy day, proemptosis, julian calendar, christian holy day, victoria day, twelfthtide, australia day, tricentenary, commemoratory, yahrzeit, geological time, fortieth, neomenia, unit of time, triduan, social occasion, civil year, novennial, islamic calendar, islamic calendar month, metemptosis, observance, quasquicentennial, memorial day, bimester, advent sunday, interlapse, quarter day, cosmic time, festivity, centenary, holiday, civil time, period, jewish calendar, silurian period, centennially, fiftieth, easter day, pythiad, jubilee, ordovician period, trimonthly, occasion, remembrance day, sextan, day, nychthemeron, silver jubilee, solar calendar, tercentenary, lunar year, zonetime, happy event, holy saturday, lunar month, centuriator, foretime, remembrance sunday, geological period, time, synodic month, commemorative, reunion, encaenia, trieterical, bridecake, ceremony, time unit, time of year, time bill, christmas, annual, bimensal, tricennial, quinible, bimestrial,