Each end of a magnet is called a pole. Each pole is either a positive pole or a negative pole. A magnet always retains its poles; if you cut one in half, each half will have a positive and negative pole. The poles are also called north-seeking, or north pole, and south-seeking, or south pole.
You have learned that when electrons move, “opposites attract” and “like repels like.” The same principle applies with magnets. When a north-seeking pole is placed next to another north-seeking pole, they repel each other. When a north-seeking pole is placed next to a south-seeking pole, they attract each other.