commonality

The common people; the commonalty

The joint possession of a set of attributes or characteristics.

Such a shared attribute or characteristic

(telecommunications) A quality that applies to materiel or systems: (a) possessing like and interchangeable parts or characteristics enabling each to be utilized, or operated and maintained in common; (b) having interchangeable repair parts and/or components; (c) applying to consumable items interchangeably equivalent without adjustment.