the act of bringing something to bear; using it for a particular purpose; "he advocated the application of statistics to the problem"; "a novel application of electronics to medical diagnosis
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function
what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?"
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consumption
(economics) the utilization of economic goods to satisfy needs or in manufacturing; "the consumption of energy has increased steadily"
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commission
the act of granting authority to undertake certain functions
