To set the choices a system will run under. Configuration is decisions made once and then held.

To make a broken thing work again. Also to hold a thing in place — the same word for repairing and for fastening.

A named piece of doing — inputs met, work performed, an answer returned. The verb of code given a callable name.

The work of keeping a thing as it should be. Maintenance produces nothing new and is the reason anything lasts.

A part that changes the meaning of what it attaches to. A modifier has no standing of its own.

The arranging of things before use. Setup decides what is possible afterward.