[1] : The Collaborative International Dictionary of English v.0.48

impeach \impeach"\, v. t. imp.  p. p. impeached; p. pr. 
   vb. n. impeaching. oe. empeechier to prevent, hinder,
   bar, f. emp^echer, l. impedicare to entangle; pref. im- in
   + pedica fetter, fr. pes, pedis, foot. see foot, and
   appeach, dispatch, impede.
   1. to hinder; to impede; to prevent. obs.
      1913 webster

            these ungracious practices of his sons did impeach
            his journey to the holy land.         --sir j.
                                                  davies.
      1913 webster

            a defluxion on my throat impeached my utterance.
                                                  --howell.
      1913 webster

   2. to charge with a crime or misdemeanor; to accuse;
      especially to charge a public officer, before a
      competent tribunal, with misbehavior in office; to cite
      before a tribunal for judgment of official misconduct; to
      arraign; as, to impeach a judge. see impeachment.
      1913 webster

   3. hence, to charge with impropriety; to dishonor; to bring
      discredit on; to call in question; as, to impeach one's
      motives or conduct.
      1913 webster

            and doth impeach the freedom of the state. --shak.
      1913 webster

   4. law to challenge or discredit the credibility of, as of
      a witness, or the validity of, as of commercial paper.
      1913 webster

   note: when used in law with reference to a witness, the term
         signifies, to discredit, to show or prove unreliable or
         unworthy of belief; when used in reference to the
         credit of witness, the term denotes, to impair, to
         lessen, to disparage, to destroy. the credit of a
         witness may be impeached by showing that he has made
         statements out of court contradictory to what he swears
         at the trial, or by showing that his reputation for
         veracity is bad, etc.

   syn: to accuse; arraign; censure; criminate; indict; impair;
        disparage; discredit. see accuse.
        1913 webster
see also:
impeached impeaching foot appeach dispatch impede 
impeachment accuse 

[2] : The Collaborative International Dictionary of English v.0.48

impeach \impeach"\, n.
   hindrance; impeachment. obs.
   1913 webster

[3] : WordNet (r) 2.0

impeach
     v 1: challenge the honesty or credibility of; as of witnesses
     2: charge with an offense or misdemeanor; "the public officials
        were impeached"
     3: charge with a crime or misdemeanor
     4: bring an accusation against; level a charge against; "he
        charged the man with spousal abuse" syn: accuse, incriminate,
         criminate
see also:
accuse incriminate criminate 

[4] : Moby Thesaurus II by Grady Ward, 1.0

80 moby thesaurus words for "impeach":
   accuse, allege, anathematize, anathemize, animadvert on, arraign,
   article, asperse, attack, belittle, blame, book, bring accusation,
   bring charges, bring to book, call into question, call to account,
   cast aspersions on, cast blame upon, cast reflection upon, censure,
   challenge, charge, cite, complain, complain against, condemn,
   criminate, cry down, cry out against, cry out on, cry shame upon,
   damn, declaim, decry, denounce, denunciate, deprecate, discredit,
   disparage, fasten on, fasten upon, file a claim, finger,
   fulminate against, hang something on, have up, implicate, imply,
   impugn, impute, incriminate, inculpate, indict, inform against,
   inform on, insinuate, inveigh against, lay charges,
   lodge a complaint, lodge a plaint, malign, pin on, prefer charges,
   press charges, pull up, put on report, reflect upon, report,
   reprehend, reproach, reprobate, shake up, slander, take to task,
   task, taunt with, tax, twit, vilify

Impeach >> I Words
Impeach, definition of term: Impeach
impeach_pag1.html

ImpeachBush / VoteToImpeach:
...in the referendum to Impeach Bush! CAST YOUR VOTE ->. Sign up for  ... of the people's call to impeach in major media outlets around the ... ..
http://www.votetoimpeach.org/, score=100, date indexed=December 29, 2005, 10:59 pm

Impeach Bush
...Impeach Bush. Editorials and Information on How to Impeach Bush. www. ... Do you oppose war? Do you want to impeach Bush?  Then here is a list ... ..
http://www.impeachbush.tv/, score=96, date indexed=December 30, 2005, 10:26 am

ImpeachBush / VoteToImpeach:
...in the referendum to Impeach Bush! CAST YOUR VOTE ->. Sign up for  ... of the people's call to impeach in major media outlets around the ... ..
http://www.impeachbush.org/, score=95, date indexed=December 30, 2005, 2:37 am

Impeach Bush
...Call is out to impeach Bush. The recommendation by Rep. Jerrold Nadler ... Impeach the GOP Congress. GOP cut deals with lobbyists without any ... ..
http://zzpat.tripod.com/cvb/, score=92, date indexed=February 2, 2006, 12:46 am

Impeach Prime Minister Tony Blair for misleading Parliament and the British ...
...Impeach Prime Minister Tony Blair for misleading Parliament and the ... d) whether there exist sufficient grounds to impeach the Rt Hon Tony ... ..
http://www.impeachblair.org/, score=92, date indexed=January 20, 2006, 12:38 am

Activists to Impeach Bush, Impeach Bush Meetups, events, clubs and groups in ...
...Meet nearby Activists to Impeach Bush! Come to an Impeach Bush Meetup ... Impeach Bush Meetup to join their appeal to Congress to impeach George ... ..
http://impeachbush.meetup.com/, score=92, date indexed=December 31, 2005, 2:57 am

impeach
... ..
http://www.rise4news.net/impeach.html, score=89, date indexed=December 29, 2005, 7:29 pm

The Impeachment of Andrew Johnson
...Personal Considerations Affecting the Vote to Impeach.   What Were the ... ..
http://www.impeach-andrewjohnson.com/, score=89, date indexed=December 30, 2005, 2:30 pm

impeach-bush.net
... ..
http://www.impeach-bush.net/, score=88, date indexed=December 30, 2005, 12:55 am

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