| amphibian(adjective, characteristic, duplicity, dual, twoness) |
| amphibious(adjective, characteristic, duplicity, dual, twoness) |
| bicameral(adjective, characteristic, duplicity, dual, twoness) |
| bifold(adjective, characteristic, duplicity, dual, twoness) |
| bifurcate(adjective, characteristic, duplicity, dual, twoness) |
| bigeminal(adjective, characteristic, duplicity, dual, twoness) |
| binate(adjective, characteristic, duplicity, dual, twoness) |
| bipartisan(adjective, characteristic, duplicity, dual, twoness) |
| bisected(adjective, characteristic, duplicity, dual, twoness) |
| corresponding(adjective, characteristic, duplicity, dual, twoness) |
| diploid(adjective, characteristic, duplicity, dual, twoness) |
| distichous(adjective, characteristic, duplicity, dual, twoness) |
| duplicate(adjective, characteristic, duplicity, dual, twoness) |
| matching(adjective, characteristic, duplicity, dual, twoness) |
| same(adjective, characteristic, duplicity, dual, twoness) |
| second(adjective, characteristic, duplicity, dual, twoness) |
| self-same(adjective, characteristic, duplicity, dual, twoness) |
| tantamount(adjective, characteristic, duplicity, dual, twoness) |
| twice(adjective, characteristic, duplicity, dual, twoness) |
| twin(adjective, characteristic, duplicity, dual, twoness) |