The Collaborative International Dictionary of English v.0.48:

Arms \Arms\, n. pl. [OE. armes, F. arme, pl. armes, fr. L. arma,
   pl., arms, orig. fittings, akin to armus shoulder, and E.
   arm. See Arm, n.]
   1. Instruments or weapons of offense or defense.
      [1913 Webster]

            He lays down his arms, but not his wiles. --Milton.
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            Three horses and three goodly suits of arms.
                                                  --Tennyson.
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   2. The deeds or exploits of war; military service or science.
      "Arms and the man I sing." --Dryden.
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   3. (Law) Anything which a man takes in his hand in anger, to
      strike or assault another with; an aggressive weapon.
      --Cowell. Blackstone.
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   4. (Her.) The ensigns armorial of a family, consisting of
      figures and colors borne in shields, banners, etc., as
      marks of dignity and distinction, and descending from
      father to son.
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   5. (Falconry) The legs of a hawk from the thigh to the foot.
      --Halliwell.
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   Bred to arms, educated to the profession of a soldier.

   In arms, armed for war; in a state of hostility.

   Small arms, portable firearms known as muskets, rifles,
      carbines, pistols, etc.

   A stand of arms, a complete set for one soldier, as a
      musket, bayonet, cartridge box and belt; frequently, the
      musket and bayonet alone.

   To arms! a summons to war or battle.

   Under arms, armed and equipped and in readiness for battle,
      or for a military parade.
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   Arm's end,

   Arm's length,

   Arm's reach. See under Arm.
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WordNet (r) 3.0 (2006):

arms
    n 1: weapons considered collectively [syn: weaponry, arms,
         implements of war, weapons system, munition]
    2: the official symbols of a family, state, etc. [syn: coat of
       arms, arms, blazon, blazonry]

Moby Thesaurus II by Grady Ward, 1.0:

107 Moby Thesaurus words for "arms":
   achievement, alerion, animal charge, annulet, argent,
   armorial bearings, armory, art of war, azure, bandeau, bar,
   bar sinister, baton, bearings, bend, bend sinister, billet, blazon,
   blazonry, bordure, broad arrow, cadency mark, canton, chaplet,
   charge, chevron, chief, chivalry, coat of arms, cockatrice,
   coronet, crescent, crest, cross, cross moline, crown, device,
   difference, differencing, eagle, ermine, ermines, erminites,
   erminois, escutcheon, falcon, fess, fess point, field, file,
   flanch, fleur-de-lis, fret, fur, fusil, garland, generalship,
   griffin, gules, gyron, hatchment, helmet, heraldic device,
   honor point, impalement, impaling, inescutcheon, knighthood, label,
   lion, lozenge, mantling, marshaling, martlet, mascle, metal, motto,
   mullet, nombril point, octofoil, or, ordinary, orle, pale, paly,
   pean, pheon, purpure, quarter, quartering, rose, sable, saltire,
   scutcheon, shield, spread eagle, subordinary, tenne, tincture,
   torse, tressure, unicorn, vair, vert, war, wreath, yale



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ARMS
       Architecture for Reliable Managed Storage (Cheyenne)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ARMS
       Automation Resources Management System


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

ARMS. Any thing that a man wears for his defence, or takes in his hands, or
uses in his anger, to cast at, or strike at another. Co. Litt. 161 b, 162 a;
Crompt. Just. P. 65; Cunn. Dict. h.t.
     2. The Constitution of the United States, Amendm. art. 2, declares,
"that a well regulated militia being necessary to the security of a free
state, the right of the people to keep and bear arms shall not be
infringed." In Kentucky, a statute "to prevent persons from wearing
concealed arms," has been declared to be unconstitutional; 2 Litt. R. 90;
while in Indiana a similar statute has been holden valid and constitutional.
3 Blackf. R. 229. Vide Story, Const. Sec. 1889, 1890 Amer. Citizen, 176; 1
Tuck. Black. App. 300 Rawle on Const. 125.



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

ARMS, heraldry. Signs of arms, or drawings painted on shields, banners, and
the like. The arms of the United States are described in the Resolution of
Congress, of June 20, 1782. Vide Seal of the United States.