The term 'relationship bond' can be defined as the TRUST between two people in a relationship. TRUST is an essential part of any relationship, and it is often seen as the foundation of a strong bond. Without TRUST, relationships can become strained and even break down. TRUST is a five-letter word that is often used to describe the relationship bond between two people. It is important for both parties to be honest and open with each other in order to build a strong relationship bond.