any recognized accomplishment; "they admired his performance under stress"; "when Roger Maris powered four home runs in one game his performance merits awe"
the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it; "they criticised his performance as mayor"; "experience generally improves performance"
the act of presenting a play or a piece of music or other entertainment; "we congratulated him on his performance at the rehearsal"; "an inspired performance of Mozart's C minor concerto"
a dramatic or musical entertainment; "they listened to ten different performances"; "the play ran for 100 performances"; "the frequent performances of the symphony testify to its popularity"
being in effect or operation; "de facto apartheid is still operational even in the `new' African nations"- Leslie Marmon Silko; "bus service is in operation during the emergency"; "the company had several operating divisions"
of or intended for or involved in military operations
pertaining to a process or series of actions for achieving a result; "operational difficulties"; "they assumed their operational positions"
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer"
the living body considered as made up of interdependent components forming a unified whole; "exercise helped him get the alcohol out of his system"
a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender"
a procedure or process for obtaining an objective; "they had to devise a system that did not depend on cooperation"
a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going"
(physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
the act or process of drawing up plans or layouts for some project or enterprise
an act of formulating a program for a definite course of action; "the planning was more fun than the trip itself"
the cognitive process of thinking about what you will do in the event of something happening; "his planning for retirement was hindered by several uncertainties"
(psychology) the aggregate of the responses or reactions or movements made by an organism in any situation
the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"