verb

1. (followed by on or upon, formerly also by of) To be contingent or conditioned; to have something as a necessary condition; to hinge on.

   “We would like to go skiing, but it depends on the amount of snow.”

2. (followed by on or upon) To trust; to have confidence; to rely.

   “we depend on the mailman to come at the usual time.”

3. To hang down; to be sustained by being fastened or attached to something above.