Appreciation

1. n. A rise in value; — opposed to depreciation.
2. n. A just valuation or estimate of merit, worth, weight, etc.; recognition of excellence.
3. n. Accurate perception; true estimation; as, an appreciation of the difficulties before us; an appreciation of colors.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.