1. To lie flat and at full length atop something. The patient reposed upon the therapist's sofa, recounting the trauma of his childhood.

2. To be based on, exist in, or take support from something. For me, faith must repose upon reason, logic, and evidence. Your belief reposes upon a fantasy you've concocted in your mind. The dictatorship's power reposed upon the fear of its citizens.

3. To impart or place something in some person, group, thing, action, or concept. In this usage, a noun or pronoun is used between "repose" and "upon." Many reposed their hopes for a better upon the new candidate, but found themselves underwhelmed once he actually took office. We found out long ago that we can no longer repose trust upon the government.