Okay kiddo, imagine you have a big round magnet, like a cookie. But instead of just having one north and one south pole, it has many small north and south poles all around it.
When we say "multi-pole" magnet, we mean a magnet with many poles.
These poles create a magnetic field, which is like an invisible force that pulls or pushes other magnets or metal objects nearby.
The more poles a magnet has, the stronger its magnetic field can be.
Scientists use multipole magnets for lots of different things, like in MRI machines to take pictures of inside our bodies or in particle accelerators to study tiny particles.
So, basically, a multipole magnet is a stronger type of magnet with many little north and south poles that can do some really cool science stuff!