use
Definitions
To take, hold, or deploy something as a means of accomplishing a purpose or achieving a result.
To consume or expend something, especially in a way that depletes a resource.
To treat or behave toward someone in a particular way, often in a manner that is exploitative.
Examples
Please use the stairs instead of the elevator.
I do not know how to use this new software.
It is important to use your time wisely.