thou·sand / ˈ[unvoicedth]ouzənd/ • cardinal number (pl. -sands / ˈ[unvoicedth]ouzndz/ or (with numeral or quantifying word) same) (a/one thousand) the number equivalent to the product of a hundred and ten; 1,000: a thousand meters two thousand acres thousands have been killed. (Roman numeral: m, M) ∎  (thousands) the numbers from one thousand to 9,999: the cost of repairs could be in the thousands. ∎  (usu. thousands) inf. an unspecified large number: you'll meet thousands of girls before you find the one you like I have imagined it a thousand times.DERIVATIVES: thou·sand·fold / -ˌfōld/ adj. & adv.thou·sandth / -zən(t)[unvoicedth]/ ordinal number .

thousand Thousand and One Nights another name for the Arabian Nights.
Thousand-Year Reich the German Third Reich (1933–45), as a regime envisaged by the Nazis as established for an indefinite period.

thousand OE. þūsend = OS. thūsundig (Du. duizend), OHG. thū-, dusunt (G. tausend), ON. þúsund, Goth. þūsundi :- Gmc. *þusundi; cogn. with Lith. túkstantis, OSl. tysęšta.