To prove or make clear by reasoning or evidence.

Act to dominate or command; make manageable. To direct or influence the behavior of something.

Explanation of how something works (e.g. product).

(Of an illness, etc.) likely to lead to death. end of railway or other transport route. End part of some structure or concept.

device for making and breaking connection in electric circuit. Things you move to turn electrical items on or off. To exchange or replace something for another thing.

A plan or schedule of events. To write computer code for a piece of software.

Business or company, or its activities.

each of parts into which something is or may be divided. To separate something into different parts.

make sure or demonstrate that something is true or justified.

An area where cars race in a circle. Electronic equipment consisting of switches. To complete a journey all the way round an area.

character representing speech sound. Messages you put in an envelope and send by post. inscribe letters on.

worrying. on subject of or in connection with. To feel worry or anxiety about something.

Forming a necessary part, base, or core. A basic part of something.

facts provided or learned.

To write an opinion about movie, book, or play.