Source : Webster's Revised Unabridged Dictionary (1913)

Certification \Cer`ti*fi*ca"tion\, n.[L. certificatio: cf. F.
   certification.]
   The act of certifying.

Source : WordNet®

certification
     n 1: the act of certifying or bestowing a franchise on [syn: {enfranchisement}]
          [ant: {disenfranchisement}]
     2: confirmation that some fact or statement is true [syn: {documentation},
         {corroboration}]
     3: a document attesting to the truth of certain stated facts
        [syn: {certificate}, {credential}, {credentials}]
     4: validating the authenticity of something or someone [syn: {authentication}]