The Collaborative International Dictionary of English v.0.48:

Accent \Ac*cent"\, v. t. [imp. & p. p. Accented; p. pr. & vb.
   n. Accenting.] [OF. accenter, F. accentuer.]
   [1913 Webster]
   1. To express the accent of (either by the voice or by a
      mark); to utter or to mark with accent.
      [1913 Webster]

   2. To mark emphatically; to emphasize.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

accenting \accenting\ n.
   1. the act of giving special importance or significance to
      something.

   Syn: emphasizing
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

accenting
    n 1: the act of giving special importance or significance to
         something [syn: emphasizing, accenting, accentuation]