• 1. either of two persons or animals conceived at the same time
• 2. ( as modifier ) - See also identical fraternal
• 3. either of two persons or things that are identical or very similar; counterpart
• 4. ( as modifier )
• 5. to pair or be paired together; couple
• 6. to bear twins
• 7. (of a crystal) to form into a twin
• 8. to be born as a twin
• 9. to create a reciprocal relation between (two towns in different countries); pair (a town) with another in a different country
• 10. (of a town) to be paired...

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