Wordnet 3.0
VERB (1)
1. 
 put trust in with confidence; 
- Example: "she is someone you can really rely on when times get rough"- Example: "you can rely on his discretion"[syn: depend on, depend upon, rely on, rely upon]
WordNet (r) 3.0 (2006):
rely upon
    v 1: put trust in with confidence; "she is someone you can
         really rely on when times get rough"; "you can rely on his
         discretion" [syn: depend on, depend upon, rely on,
         rely upon]