| Twin | |
| 1. n. (baseball) A player who plays for the Minnesota Twins. | |
| 2. n. Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling. | |
| 3. n. Either of two similar or closely related objects, entities etc. | |
| 4. n. A room in a hotel, guesthouse, etc. with two beds; a twin room. | |
| 5. n. (US) A twin size mattress or a bed designed for such a mattress. | |
| 6. n. (crystallography) A twin crystal. | |
| 7. v. (transitive, obsolete, outside, Scotland) To separate, divide. | |
| 8. v. (intransitive, obsolete, outside, Scotland) To split, part; to go away, depart. | |
| 9. v. (usually in the passive) To join, unite; to form links between (now especially of two places in different countries). | |
| Placetown in England is twinned with Machinville in France. | |
| Coventry twinned with Dresden as an act of peace and reconciliation, both cities having been heavily bombed during the war. | |
| 10. v. (intransitive) To be paired or suited. | |
| 11. v. (intransitive) To give birth to twins. | |
| 12. v. (intransitive, obsolete) To be born at the same birth. | |
| 13. adj. double; dual; occurring as a matching pair | |
| twin beds, twin socks | |
| 14. adj. forming a pair of twins. | |
| the twin boys | |
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