Magnetic induction is the property by which some magnetic properties develop temporarily in magnetic materials (iron, nickel, etc) in presence of a magnet near it.
Due to the presence of a magnet the atomic magnets in a magnetic material get aligned along the external magnetic field.
You have sometimes seen that a magnetic material turns into a magnet or we can say in the magnetic material there develops magnetism in presence of a magnet near it.
When we bring a magnet near a magnetic material