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1. Tending to bring about; being partly responsible for
   "the seaport was a contributing factor in the growth of the city"
   - conducive, contributive, contributory, tributary

1. Bestow a quality on
   - lend, impart, bestow, add, bring
    
2. Contribute to some cause
   - give, chip in, kick in
    
3. Be conducive to
   - lead, conduce
    
4. Provide
   - put up

See also: causative, contribution, contributor

Type of: advance, alter, boost, change, encourage, further, give, modify, pay, promote

Encyclopedia: Contribute