| interchangeable(adjective, common, similar, joint, public) |
| merged(adjective, correlational) |
| agnate(adjective, similar, linked, relevant, connected) |
| agreeing(adjective, joint, harmonious, united, shared) |
| alternate |
| analogous(adjective, similar, interchangeable, proportionate, homologous) |
| back-and-forth(adjective, correlational) |
| bracketed(adjective, involved, touching, united, linked) |
| co-dependent |
| coacting(adjective, joint, harmonious, united, shared) |
| coactive(adjective, joint, harmonious, united, shared) |
| coadjutant |
| coadjuvant(adjective, joint, harmonious, united, shared) |
| coefficient(adjective, common, joint, collateral, harmonious) |
| cohesive |
| collaborating(adjective, joint, harmonious, united, shared) |
| collective(adjective, common, joint, harmonious, united) |
| collegial(adjective, joint, harmonious, united, shared) |
| collusive(adjective, joint, harmonious, united, shared) |
| combined(adjective, involved, joint, harmonious, united) |