- unity [yo͞o′nə tē]n.pl. unities [ME unite < OFr unité < L unitas, oneness < unus,ONE]1. the state of being one, or united; oneness; singleness2. something complete in itself; single, separate thing3. the quality of being one in spirit, sentiment, purpose, etc.; harmony; agreement; concord; uniformity4.a) unificationb) a unified group or body5. the quality or fact of being a totality or whole, esp. a complex that is a union of related parts6.a) an arrangement of parts or material in a work of art or literature, that will produce a single, harmonious effectb) a design or effect so produced7. constancy, continuity, or fixity of purpose, action, etc.8. Math.a) any quantity, magnitude, etc. considered or identified as a unit, or 1b) the numeral or unit 1——————the three unities or the unitiesthe three principles of dramatic construction derived by French neoclassicists from Aristotle's Poetics, holding that a play should have one unified plot (unity of action) and that all the action should occur within one day (unity of time) and be limited to a single locale (unity of place)SYN.- UNITY implies the oneness, as in spirit, aims, interests, feelings, etc., of that which is made up of diverse elements or individuals [national unity]; UNION implies the state of being united into a single organization for a common purpose [a labor union]; SOLIDARITY implies such firm and complete unity in an organization, group, class, etc. as to make for the greatest possible strength in influence, action, etc.
English World dictionary. V. Neufeldt. 2014.