appreciation
     n 1: understanding of the nature or meaning or quality or
          magnitude of something; "he has a good grasp of
          accounting practices" [syn: {grasp}, {hold}]
     2: delicate discrimination (especially of aesthetic values);
        "arrogance and lack of taste contributed to his rapid
        success"; "to ask at that particular time was the ultimate
        in bad taste" [syn: {taste}, {discernment}, {perceptiveness}]
     3: an expression of gratitude; "he expressed his appreciation
        in a short note"
     4: a favorable judgment; "a small token in admiration of your
        works" [syn: {admiration}]
     5: an increase in price or value; "an appreciation of 30% in
        the value of real estate" [ant: {depreciation}]
Source: WordNet® 2.0