NOUN (1)

1. open rebellion against constituted authority (especially by seamen or soldiers against their officers);


VERB (1)

1. engage in a mutiny against an authority;

The Collaborative International Dictionary of English v.0.48:

Mutiny \Mu"ti*ny\, n.; pl. Mutinies. [From mutine to mutiny,
   fr. F. se mutiner, fr. F. mutin stubborn, mutinous, fr. OF.
   meute riot, LL. movita, fr. movitus, for L. motus, p. p. of
   movere to move. See Move.]
   1. Insurrection against constituted authority, particularly
      military or naval authority; concerted revolt against the
      rules of discipline or the lawful commands of a superior
      officer; hence, generally, forcible resistance to rightful
      authority; insubordination.
      [1913 Webster]

            In every mutiny against the discipline of the
            college, he was the ringleader.       --Macaulay.
      [1913 Webster]

   2. Violent commotion; tumult; strife. [Obs.]
      [1913 Webster]

            To raise a mutiny betwixt yourselves. --Shak.
      [1913 Webster]

   Mutiny act (Law), an English statute reenacted annually to
      punish mutiny and desertion. --Wharton.
      [1913 Webster]

   Syn: See Insurrection.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mutiny \Mu"ti*ny\, v. i. [imp. & p. p. Mutinied; p. pr. & vb.
   n. Mutinying.]
   1. To rise against, or refuse to obey, lawful authority in
      military or naval service; to excite, or to be guilty of,
      mutiny or mutinous conduct; to revolt against one's
      superior officer, or any rightful authority.
      [1913 Webster]

   2. To fall into strife; to quarrel. [Obs.] --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

mutiny
    n 1: open rebellion against constituted authority (especially by
         seamen or soldiers against their officers)
    v 1: engage in a mutiny against an authority

Moby Thesaurus II by Grady Ward, 1.0:

51 Moby Thesaurus words for "mutiny":
   arise, civil disorder, disobedience, disobey, emeute,
   general uprising, indiscipline, insubordination, insurge,
   insurgence, insurgency, insurrect, insurrection, interregnum,
   irresponsibility, jacquerie, lawlessness, levee en masse, license,
   licentiousness, mount the barricades, mutineer, outbreak,
   overthrow, peasant revolt, power vacuum, putsch, rampant will,
   rebel, rebellion, reluct, reluctate, revolt, revolute, revolution,
   revolutionize, riot, rise, rise against, rise up, rising, run riot,
   strike, subversion, subversiveness, subvert, unaccountability,
   uncontrol, unrestraint, uprising, willfulness



Bouvier's Law Dictionary, Revised 6th Ed (1856):

MUTINY, crimes. The unlawful resistance of a superior officer, or the
raising of commotions and disturbances on board of a ship against the
authority of its commander, or in the army in opposition to the authority of
the officers; a sedition; (q.v.) a revolt. (q.v.)
     2. By the act for establishing rules and articles for the government of
the armies of the United States, it is enacted as follows: Article 7. Any
officer or soldier, who shall begin, excite, or cause, or join in, any
mutiny or sedition in any troop or company in the service of the United
States, or in any party, post, detachment or guard, shall suffer death, or
such other punishment as by a court martial shall be inflicted. Article 8.
Any officer, non-commissioned officer, or soldier, who being present at any
mutiny or sedition, does not use his utmost endeavors to suppress the same,
or coming to the knowledge of any intended mutiny, does not without delay
give information thereof to his commanding officer, shall be punished by the
sentence of a court martial, with death, or otherwise, according to the
nature of his offence.
     3. And by the act for the better government of the navy of the United
States, it is enacted as follows,: Article 13. If any person in the navy
shall make or attempt to make any mutinous assembly, he shall, on conviction
thereof by, a court martial, suffer death; and if any person as aforesaid,
shall utter any seditious or mutinous words, or shall conceal or connive at
any mutinous or seditious practices, or shall treat with contempt his
superior, being in the execution of his office, or being witness to any
mutiny or sedition, shall not do his utmost to suppress it, he shall be
punished at the discretion of a court martial. Vide 2 Stra. R. 1264.