About 10 milions words - just search :).
Debate De*bate", v. i. 1. To engage in strife or combat; to fight. [Obs.] --Chaucer. Well could he tourney and in lists debate. --Spenser. 2. To contend in words; to dispute; hence, to deliberate; to consider; to discuss or examine different arguments in the mind; -- often followed by on or upon. He presents that great soul debating upon the subject of life and death with his intimate friends. --Tatler.