Regulate is an action that involves controlling, managing, and overseeing a situation or process. SUPERVISE (9 letters) means to oversee the work of others, ADMINISTER (10 letters) means to manage or DIRECT the operations of a business or organization, ARRANGE (7 letters) means to organize or put in order, ADAPT (5 letters) means to make suitable for a new use or purpose, RECONCILE (9 letters) means to restore friendly relations between two people or groups, DIRECT (6 letters) means to give authoritative instructions, MONITOR (7 letters) means to observe and check the progress or quality of something over a period of time, DETERMINE (9 letters) means to decide or establish something definitely, RULE (4 letters) means to exercise authority or control, CHANGE (6 letters) means to make or become different, ALTER (5 letters) means to make minor changes to something, PACE (4 letters) means to set the speed or RATE of something, RATE (4 letters) means to assign a standard or value to something, and POLICE (6 letters) means to enforce laws and regulations. All of these words are related to the action of regulating, which is the act of controlling, managing, and overseeing a situation or process.