Thing, person which represents a category. be illustrated or exemplified.

set of things working together as parts of mechanism. Sets of organized planned ideas that work together.

Used to add new (often different) information.

Series of events moving from place to place. Electronic equipment consisting of switches. move whole way round.

Hidden beneath the surface of something. part or side of something facing towards ground. Located under or below something.

set of railway vehicles forming train. To have as an essential, necessary or main part.

Main circuit board of a computer.

Electronic screen on which you can see images. observe and check quality over time.

mathematical determination. Process or result of using mathematics.

area of land held by lease. To keep an image, belief or feeling in your mind.

To keep something from spreading.

Machine for storing data, accessing the internet.

having effect of making something less warm or hot. action of making less hot. To make something decrease in temperature.

Preparation by treating something in a certain way. perform mechanical or chemical operations on.

set of related measures. Plans or schedule of events. To write computer code for a piece of software.