a tall, narrow building, either free-standing or forming part of a building such as a church or castle

the south-west tower is a wonderful example of late Gothic

a tall structure that houses machinery, operators, etc.

a control tower

rise to or reach a great height

he seemed to tower over everyone else

(of a bird) soar to a great height, especially (of a falcon) so as to be able to swoop down on the quarry