nullity

Example:The contract’s validity was challenged, but the court confirmed its binding nature.

Definition:The quality of being legitimate, effective, or authoritative; something that has legal or practical effect or value.

Example:He realized the effectiveness of his argument when his opponent conceded the point.

Definition:The degree to which something has, or is intended to have, a desired effect or influence.

Example:Despite the society’s claims, the children’s existence as a minority was simply a nullity in the majority's eyes.

Definition:The act or fact of existing, being real or having objective reality; being, especially in relation to actuality or objective verifiability.