Regulate (verb)

1. Control or maintain the rate or speed of (a machine or process) by adjusting the controls.
2. Bring order and organization to (a situation or activity).
3. Control or supervise (an activity or organization) by means of rules or laws.

Origin:

Late middle english: from latin regulat- "regulated", from the verb regulare, from regula "rule".

Examples:

1. The pilot regulated the speed of the plane.
2. The company regulates its employees' working hours.
3. The government regulates the sale of certain goods and services.
4. The traffic lights regulate the flow of traffic.
5. The company is regulated by the Securities and Exchange Commission.