noun /əˈkɒmplɪʃmənt/
a) The act of accomplishing; entire performance; completion; fulfillment; as, the accomplishment of an enterprise, of a prophecy, etc.
b) That which completes, perfects, or equips thoroughly; acquirement; attainment; that which constitutes excellence of mind, or elegance of manners, acquired by education or training.
Wikipedia foundation.