WordWeb Online

1. Be contingent on
   "Your grade will depend on your homework";
   - devolve on, depend upon, ride, turn on, hinge on, hinge upon
    
2. Put trust in with confidence
   "she is someone you can really depend on when times get rough";
   - depend upon, rely on, rely upon, swear by
    
3. Be dependent on, as for support or maintenance
   "elderly parents often depend on their adult children";
   - rely on

Derived forms: depended on, depending on, depends on