The indefinite equals the universal.

Explanation

A grant, statute, or declaration that uses indefinite language without limitation is construed as applying universally — an unrestricted term covers all persons, things, or cases within its class.

Where this applies

• A statute bans 'vehicles' from a park without specifying what types, and the court holds the indefinite term covers all vehicles — cars, trucks, bicycles, and motorized scooters alike.
• A contract prohibits 'interference' with the seller's business without defining the term, and the court rules the unrestricted language applies to every form of interference.
• A regulation requires 'persons' to register, and because the term is used without limitation, the court reads it as applying universally to all natural persons within the jurisdiction.