అర్థం : Process or manner of functioning or operating.
							ఉదాహరణ : 
							The power of its engine determines its operation.
							The plane's operation in high winds.
							They compared the cooking performance of each oven.
							The jet's performance conformed to high standards.
							
పర్యాయపదాలు : operation, performance
అర్థం : Performing or able to perform its regular function.
							ఉదాహరణ : 
							A functioning flashlight.
							
Not performing or able to perform its regular function.
A malfunctioning valve.