| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | in a pair |
| Synonyms: | as much again, bifold, binary, binate, coupled, dual, dualistic, duple, duplex, duplicate, duplicated, geminate, paired, repeated, second, twice, twin, two times, twofold |
| Antonyms: | single |
| Main Entry: | twin |
| Part of Speech: | adjective |
| Definition: | duplicate, similar |
| Synonyms: | accompanying, bifold, binary, copied, corresponding, coupled, double, dual, duplicating, geminate, identical, joint, like, matched, matching, paired, parallel, same, second, selfsame, twofold, very same |
| Antonyms: | dissimilar, individual, singular, unlike |
| Main Entry: | twofold |
| Part of Speech: | adjective |
| Definition: | having more than one and less than three |
| Synonyms: | bifold, binal, binary, diploid, double, dual, duple, duplex, duplicate, paired |