A large system consisting of many similar parts that are connected together to allow movement or communication between or along the parts or between the parts and a control centre.
An occasion when someone buys or sells something, or when money is exchanged or the activity of buying or selling something.
Happening immediately, without any delay.
In a safe way.
An object or machine that has been invented for a particular purpose.
Owned, divided, felt, or experienced by more than one person.
To come together.
To give, direct, or aim something.
A high level of knowledge or skill.
To find information, a place, or an object, especially for the first time.
