lib·er·ty (lbr-t) n. pl. lib·er·ties 1. a. The condition of being free from restriction or control. b. The right and power to act, believe, or express oneself in a manner of one’s own choosing. c. The condition of being physically and legally free from confinement, servitude, or forced labor. See Synonyms at freedom. 2. Freedom from unjust or undue governmental control. 3. A right or immunity to engage in certain actions without control or interference: the liberties protected by the Bill of Rights.