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 over time; "an appreciation of
        30% in the value of real estate" [ant: depreciation]