1. a person who makes a deposition or gives sworn testimony, especially in a legal proceeding
Usage: legal term; formal
2. a person who removes or overthrows someone from power or office
Usage: less common

Examples

• The deposer testified under oath about what she had witnessed.
• In the trial, the deposer's statement was crucial to the case.
• The lawyer questioned the deposer about the events of that night.
• Multiple deposers provided conflicting accounts of the incident.
• The deposer was required to sign the deposition before leaving the courthouse.