[+ obj] law 1 : to charge (a public official) with a crime done while in office
▪ Congress will vote on whether or not to impeach the President. ▪ impeach a judge 2 formal : to cause doubts about the truthfulness of (a witness, testimony, etc.)
▪ The defense lawyers tried to impeach the witness's testimony by forcing him to admit that he had changed his story.
▪ Congress will vote on whether or not to impeach the President. ▪ impeach a judge
▪ The defense lawyers tried to impeach the witness's testimony by forcing him to admit that he had changed his story.





