A tower is a tall, narrow building, that either stands alone or forms part of another building such as a church or castle.

Someone or something that towers over surrounding people or things is a lot taller than they are.

A tower is a tall structure that is used for sending radio or television signals.

A tower is the same as a tower block .

A tower is a tall box that contains the main parts of a computer, such as the hard disk and the drives.

If you refer to someone as a tower of strength, you appreciate them because they give you a lot of help, support, and encouragement when you have problems or are in a difficult situation.