Source : Webster's Revised Unabridged Dictionary (1913)

Attainment \At*tain"ment\, n.
   1. The act of attaining; the act of arriving at or reaching;
      hence, the act of obtaining by efforts.

            The attainment of every desired object. --Sir W.
                                                  Jones.

   2. That which is attained to, or obtained by exertion;
      acquirement; acquisition; (pl.), mental acquirements;
      knowledge; as, literary and scientific attainments.

Source : WordNet®

attainment
     n 1: the act of achieving an aim; "the attainment of
          independence"
     2: arrival at a new stage; "his attainment of puberty was
        delayed by malnutrition"
     3: an ability that has been acquired by training [syn: {skill},
         {accomplishment}, {acquirement}, {acquisition}]