Coordinate covalent bond

In a coordinate covalent bond, one atom donates an extra electron to form a bond. It's kind of like two friends sharing something. One friend (the atom donating the extra electron) gives the other friend (the other atom) a part of something they own (the electron) so they can make a bond together. The one that donated the electron is like the "coordinator" because they helped make the bond happen. The two friends (atoms) stay close together because they share that extra electron, and that's what keeps them bonded together.