From 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]