Answer: An ionic bond is a bond between a cation and an anion.
Explanation: Ionic bond is defined as the bond in which complete transfer of electrons takes place from one element to another element.
The element which is transferring the electrons form a cation because it is loosing electrons.
The element which is accepting the electrons will form an anion because it is gaining electrons.
So, the ionic bond is the bond which is formed between a cation and an anion.