The Collaborative International Dictionary of English v.0.48:

Peace \Peace\, v. t. & i.
   To make or become quiet; to be silent; to stop. [R.] "Peace
   your tattlings." --Shak.
   [1913 Webster]

         When the thunder would not peace at my bidding. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Peace \Peace\, n. [OE. pees, pais, OF. pais, paiz, pes, F. paix,
   L. pax, pacis, akin to pacere, paciscere, pacisci, to make an
   agreement, and prob. also pangere to fasten. Cf. Appease,
   Fair, a., Fay, v., Fang, Pacify, Pact, Pay to
   requite.]
   A state of quiet or tranquillity; freedom from disturbance or
   agitation; calm; repose; specifically:
   (a) Exemption from, or cessation of, war with public enemies.
   (b) Public quiet, order, and contentment in obedience to law.
   (c) Exemption from, or subjection of, agitating passions;
       tranquillity of mind or conscience.
   (d) Reconciliation; agreement after variance; harmony;
       concord. "The eternal love and pees." --Chaucer.
       [1913 Webster]

   Note: Peace is sometimes used as an exclamation in commanding
         silence, quiet, or order. "Peace! foolish woman."
         --Shak.
         [1913 Webster]

   At peace, in a state of peace.

   Breach of the peace. See under Breach.

   Justice of the peace. See under Justice.

   Peace of God. (Law)
   (a) A term used in wills, indictments, etc., as denoting a
       state of peace and good conduct.
   (b) (Theol.) The peace of heart which is the gift of God.

   Peace offering.
   (a) (Jewish Antiq.) A voluntary offering to God in token of
       devout homage and of a sense of friendly communion with
       Him.
   (b) A gift or service offered as satisfaction to an offended
       person.

   Peace officer, a civil officer whose duty it is to preserve
      the public peace, to prevent riots, etc., as a polliceman,
      sheriff or constable.

   To hold one's peace, to be silent; to refrain from
      speaking.

   To make one's peace with, to reconcile one with, to plead
      one's cause with, or to become reconciled with, another.
      "I will make your peace with him." --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

peace
    n 1: the state prevailing during the absence of war [ant: state
         of war, war]
    2: harmonious relations; freedom from disputes; "the roommates
       lived in peace together"
    3: the absence of mental stress or anxiety [syn: peace,
       peacefulness, peace of mind, repose, serenity,
       heartsease, ataraxis]
    4: the general security of public places; "he was arrested for
       disturbing the peace" [syn: peace, public security]
    5: a treaty to cease hostilities; "peace came on November 11th"
       [syn: peace, peace treaty, pacification]

Moby Thesaurus II by Grady Ward, 1.0:

181 Moby Thesaurus words for "peace":
   Pax Dei, Pax Romana, Peace of God, accord, accordance, affinity,
   agape, agreement, amity, armistice, arrangement, array, assent,
   ataraxia, ataraxy, awful silence, bonds of harmony,
   breathing spell, brotherly love, buffer zone, calm, calmness,
   caritas, cease-fire, cement of friendship, charity, chorus,
   coherence, coincidence, commodiousness, communion, community,
   community of interests, compatibility, composure, concert, concord,
   concordance, conformance, conformation, conformity, congeniality,
   congruence, congruency, congruity, consistency, consonance,
   consort, contemplation, convenience, cooling-off period,
   cooperation, correspondence, coziness, cushioniness, dead,
   dead of night, deathlike silence, demilitarized zone, deployment,
   disposal, disposition, easiness, empathy, equivalence, esprit,
   esprit de corps, feeling of identity, fellow feeling, fellowship,
   formation, frictionlessness, friendliness, golden silence,
   good vibes, good vibrations, happy family, harmoniousness, harmony,
   hollow truce, homelikeness, homeliness, homeyness, hospitality,
   hush, hush of night, identity, imperturbability, inaudibility,
   intersection, kinship, layout, like-mindedness, lineup, love,
   lucid stillness, lull, luxuriousness, marmoreal repose, marshaling,
   modus vivendi, mum, mutuality, neutral territory, nirvana,
   noiselessness, oneness, order, organization, overlap, pacification,
   parallelism, pax in bello, peace of mind, peaceableness,
   peacefulness, peacetime, placidity, placidness, proportion,
   quiescence, quiescency, quiet, quietism, quietness, quietude,
   rapport, rapprochement, reciprocity, regularity, repose,
   reposefulness, rest, restfulness, roominess, routine, satori,
   self-consistency, serenity, setup, sharing, silence, silentness,
   silken repose, sleep, slumber, snugness, softness, solemn silence,
   solidarity, soundlessness, stand-down, still, stillness, structure,
   suspension of hostilities, symmetry, sympathy, symphony, sync,
   synchronism, system, tacitness, taciturnity, tally, team spirit,
   temporary arrangement, timing, tomblike silence, tranquillity,
   treaty of peace, truce, understanding, uniformity, union, unison,
   unisonance, unity, warmness, whisht, wise passiveness



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

PEACE. The tranquillity enjoyed by a political society, internally, by the
good order which reigns among its members, and externally, by the good
understanding it has with all other nations. Applied to the internal
regulations of a nation, peace imports, in a technical sense, not merely a
state of repose and security, as opposed to one of violence and warfare, but
likewise a state of public order and decorum. Ham. N. P. 139; 12 Mod. 566.
Vide, generally, Bac. Ab. Prerogative, D 4; Hale, Hist. P. C. 160; 3 Taunt.
R. 14; 1 B. & A. 227; Peake, R. 89; 1 Esp. R. 294; Harr. Dig. Officer, V 4;
2 Benth. Ev. 319, note. Vide Good behaviour; Surety of the peace.



The Devil's Dictionary (1881-1906):

PEACE, n.  In international affairs, a period of cheating between two
periods of fighting.

    O, what's the loud uproar assailing
        Mine ears without cease?
    'Tis the voice of the hopeful, all-hailing
        The horrors of peace.

    Ah, Peace Universal; they woo it --
        Would marry it, too.
    If only they knew how to do it
        'Twere easy to do.

    They're working by night and by day
        On their problem, like moles.
    Have mercy, O Heaven, I pray,
        On their meddlesome souls!
                                                               Ro Amil