Slew means a big number of things. It is used when talking about many things together. This meaning is very common in everyday language.
She has a slew of books to read.
We saw a slew of stars in the sky.
Slew as a verb means to turn or slide quickly and in a sudden way. It often talks about vehicles or objects moving in a circle or sideways without control.
The car slew on the icy road.
He slew the boat to avoid a rock.
Slew in technical use means to turn or move equipment quickly in one direction. It is used in machines, cameras, or radar devices to describe controlled rotation.
The radar can slew 360 degrees fast.
Please slew the camera to the left side.
Slew can mean a swamp or wet area with slow water. This meaning is used mainly in some regions and describes a natural place with water and plants.
The farm was near a wet slew.
Fish live in the slew by the river.
Slew is a past tense form of slay, meaning to kill someone or something. It is old or literary and shows a forceful killing action.
He slew the dragon in the story.
The hero slew his enemy quickly.