Entry 1 sense Webster, 1913 Liberator /(lĭb"ẽr*ā`tẽr)/ · Lib·er·a·tor · IPA /ˈlɪbəɹeɪtəɹ/ 01 n. One who, or that which, liberates; a deliverer. 1. One who, or that which, liberates; a deliverer.