mutuality

The state or quality of being mutual; reciprocity; interchange. Thus, a contract that has no consideration is said to be void for want of mutuality.

Interchange of acts or expressions of affection or kindness; familiarity.

The quality of correlation; reciprocation; interchange; interaction; interdependence.

Reciprocity of consideration.

The property of being mutual.

a reciprocal relation between interdependent entities (objects or individuals or groups)

a reciprocality of sentiments