1. to charge a public official with misconduct in office
Usage: political/legal
2. to challenge or question the credibility or validity of something
Usage: formal

Examples

• Congress voted to impeach the president for abuse of power.
• The House has the sole power to impeach federal officials.
• The lawyer tried to impeach the witness’s testimony.
• New evidence could impeach the defendant’s alibi.
• The senator was impeached but not removed from office.
• They sought to impeach his character during the trial.