Operating, functioning, or existing without additions or assistance; independent; able to be separate or separated.(adjective)
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Use "stand-alone" in a sentence
"The type of system that Mr. Ditmeyer and others favor, referred to as stand-alone PTC, would in theory increase the capacity of the rail network by making it safe for trains to operate closer together."
"While technology in the narrowest sense can be characterized as stand-alone, explicit knowledge that is closely held and easily contained, technological competence is different."
"Medicare Advantage insurance plans in 2012 and also boosted their use of insurance plans linked with large pharmacy chains for what's called stand-alone prescription drug plans PDPs."