1. Being two identical
   - duplicate, matching, twin

1. Duplicate or match
   "The polished surface twinned his face and chest in reverse"
   - duplicate, parallel 
2. Bring two objects, ideas, or people together
   - match, mate, couple, pair 
3. Grow as twins
   "twin crystals" 
4. Give birth to twins

See also: matched

Type of: agree, bear, birth, bring together, check, correspond, deliver, fit, gibe, give birth, grow, have, jibe, join, match, tally

Encyclopedia: Twin

• rationally
• rationalness
• rationed
• rationing
• Ratitae
• ratite
• ratite bird
• ratlike
• ratlin
• ratline
• ratoon
• ratsbane
• rattail
• rattail cactus
• rattail fish
• rattan
• rattan cane
• rattan palm
• ratteen
• ratter
• Rattigan
• ratting
• rattle
• rattle down
• rattle off