| collaborative(adjective, correlational) |
| common(adjective, interchangeable, proportionate, homologous, socialistic) |
| commutual(adjective, interchangeable, opposite, proportionate, homologous) |
| companion |
| completory(adjective, interchangeable, opposite, proportionate, homologous) |
| concomitant(adjective, similar, collateral, attendant, related) |
| connate(adjective, similar, linked, relevant, connected) |
| connatural(adjective, similar, linked, relevant, connected) |
| consanguine(adjective, similar, linked, relevant, connected) |
| convertible(adjective, similar, linked, relevant, connected) |
| cooperational(adjective, correlational) |
| coordinate(verb, adjective, concern, apply, associate) |
| correlational(adjective, correlational) |
| correlative(adjective, organized, interchangeable, opposite, proportionate) |
| correspondent(adjective, similar, interchangeable, opposite, proportionate) |
| crisscross |
| crisscrossed |
| dependent(adjective, similar, linked, relevant, connected) |
| dovetailed(adjective, correlational) |
| enmeshed(adjective, similar, linked, relevant, connected) |