| double(noun, adjective, part, like, double) |
| dual(noun, adjective, part, like, double) |
| duplex(adjective, part, double, accompaniment, second) |
| twofold(adjective, part, like, double, identical) |
| duple(adjective, part, double, second, twin) |
| duplicate(adjective, part, like, double, identical) |
| twin(noun, adjective, like, duplicate, double) |
| dualistic(adjective, double, accompaniment, second, dual) |
| geminate(adjective, part, like, double, similar) |
| two(noun, adjective, double, accompaniment, two) |
| biform(adjective, part, double) |
| binate(adjective, accompaniment, second, dual, two) |
| duality |
| dyadic(adjective, double, accompaniment) |
| paired(adjective, like, double, similar, identical) |
| second(adjective, like, double, similar, identical) |
| bilateral(adjective, double) |
| binary star(noun, expression, idiom) |
| double-barreled(adjective, double) |
| double-faced(adjective, double) |