Origin: Latin suffix -ment
Impeachment has 3 different meanings across 1 category:
a formal document charging a public official with misconduct in office
"The Senate prepared to vote on the impeachment, which was a formal document charging the governor with serious misconduct while in office."
The act of calling into question or challenging the accuracy or propriety of something.
"The committee's request for documents served as an impeachment of the mayor's claim that he had never visited the disputed site."
A demonstration in a court of law, or before another finder of fact, that a witness was ingenuine before, and is therefore less likely to tell the truth now.
"The prosecutor cross-examined the defendant until he finally impeached his own alibi by revealing that he had lied about his whereabouts three times during previous police interviews."