bimillennium

enUK

bi·mil·len·ni·um

B0254500 (bī′mə-lĕn′ē-əm)n. pl. bi·mil·len·ni·ums or bi·mil·len·ni·a (-lĕn′ē-ə) 1. A span of 2,000 years.2. A 2,000th anniversary.

bi′mil·len′ni·al adj.bi′mil·len′ni·al·ly adv.

(ˌbaɪmɪˈlɛnɪəm) na period of two thousand years

(ˌbaɪ mɪˈlɛn i əm)

n., pl. -len•ni•ums, -len•ni•a (-ˈlɛn i ə) 1. a period of two thousand years. 2. a two-thousandth anniversary.

Thesaurus

Noun	1.	bimillennium - the 2000th anniversary (or the celebration of it)bimillenaryanniversary, day of remembrance - the date on which an event occurred in some previous year (or the celebration of it)
	2.	bimillennium - a span of 2000 years bimillenaryperiod, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"