WordWeb Online

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