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Verb: depend upon  di'pend u'pón
  1. Be contingent on
    "Your grade will depend upon your homework";
    - depend on, devolve on, ride, turn on, hinge on, hinge upon
  2. Put trust in with confidence
    "she is someone you can really depend upon when times get rough";
    - depend on, rely on, rely upon, swear by

Derived forms: depended upon, depending upon, depends upon