| correspondent(adjective, common, popular, universal, similar) |
| customary(adjective, common, popular, universal, joint) |
| interdependent(adjective, common, similar, joint, linked) |
| intermutual(adjective, common, popular, universal, joint) |
| like(adjective, common, popular, universal, similar) |
| related(adjective, common, joint, public, united) |
| respective(adjective, common, shared) |
| well-known(adjective, common, popular, universal, joint) |
| widespread(adjective, common, popular, universal, joint) |
| coefficient(adjective, joint, shared, two-way, co-operative) |
| collusive(adjective, joint, shared, two-way, co-operative) |
| commutative(adjective, interchange) |
| concerted(adjective, consistent, joint, harmonious, united) |
| concurrent(adjective, agreeing, converging) |
| convertible(adjective, common, similar, joint, identical) |
| give-and-take(adjective, common, joint, alternate, shared) |
| interchanged(adjective, common, shared, interchange) |
| interconnected(adjective, similar, linked, relevant, shared) |
| interrelated(adjective, similar, linked, relevant, connected) |
| mutually beneficial |