Satisfaction

noun

2. The fulfillment or gratification of a desire, need, or appetite.

   "wanted more space and found satisfaction in a new apartment."

3. Pleasure or contentment derived from such gratification.

   "took satisfaction in being vindicated."

4. An instance of being satisfied or a source of gratification.
5. Assurance beyond doubt or question; complete conviction.

   "You must prove your case to the satisfaction of the court."