appreciation

noun4

1. •
   A fair valuation or estimate of merit, worth, weight, etc.; recognition of excellence; gratitude and esteem.

   • We give to you this trophy as a token of our appreciation of all your years of service.
2. •
   Accurate perception; true estimation.

   • an appreciation of colors
3. •
   A rise in value.
4. •
   The act of appreciating.