[zest] 
| 1. | keen relish; hearty enjoyment; gusto. |
| 2. | an agreeable or piquant flavor imparted to something. |
| 3. | anything added to impart flavor, enhance one's appreciation, etc. |
| 4. | piquancy; interest; charm. |
| 5. | liveliness or energy; animating spirit. |
| 6. | the peel, esp. the thin outer peel, of a citrus fruit used for flavoring: lemon zest. |
| 7. | to give zest, relish, or piquancy to. |
