operate

(ŏpˈə-rātˌ)

1. To perform a function; work: The motor operates smoothly.
2. To perform surgery.
3. a. To exert an influence: forces operating on the economy.
   b. To produce a desired or proper effect: a drug that operates quickly.
4. To carry on a military or naval action or campaign.
5. Informal To conduct business in an irregular or devious manner: drug dealers operating in residential and urban areas.

1. To control the functioning of; run: operate a sewing machine.
2. To conduct the affairs of; manage: operate a business.