MAGNET

A magnet is a piece of metal or other material that has the ability to attract other metal object.

In other words: A magnet is a piece of metal with a strong attraction to another metal object.

The attraction a magnet produces is called a "magnetic field."

In American English

( mægnɪt )

NOUN

1. any piece of certain kinds of material, as iron, that has the property of attracting like material: this property may be temporarily or permanent induced.
2. a body, as a piece of iron or steel, that possesses the property of attracting certain substances, as iron.
3. a 
   lodestone
4. a person or thing that attracts.

In British English

( mæɡnɪt )

NOUN

1. a body that can attract certain substances, such as iron or steel, as a result of a magnetic field; a piece of ferromagnetic substance.

2. a person or thing that exerts a great attraction.

COUNTABLE NOUN

• A magnet is a piece of iron or other material which attracts iron towards it.
• If you say that something is a magnet or is like a magnet, you mean that people are very attracted by it and want to go to it or look at it.

sentence example:

Lower interest rates are acting like a magnet, dragging consumers back to the shops.