magnet

noun
  1. An object, typically made of iron, nickel, or cobalt, or an alloy of these materials, that has the property of attracting certain metals, primarily iron, and producing a magnetic field external to itself. noun
    The refrigerator door has a magnet to hold notes and pictures.
    The compass needle is a small magnet that aligns with the Earth's magnetic field.
  2. A person, place, or thing that has a powerful attraction or draws others to it. noun
    The new shopping mall is a magnet for tourists and locals alike.
    His charismatic personality made him a magnet for attention at social gatherings.