1 : to testify to under oath or by sworn affidavit
2 : to take testimony from esp. by deposition [plaintiffs…were entitled to experts retained by the defendants "National Law Journal "] compare examine
: testify [the plaintiff deposed in person to many specific facts "Mintz v. Atlantic Coast Line R. Co., 72 S.E.2d 38 (1952)"]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.