[syn: loyalty, trueness]
3.  exactness of adjustment; 
- Example: "I marveled at the trueness of his aim"
The Collaborative International Dictionary of English v.0.48:
Trueness \True"ness\, n.
   The quality of being true; reality; genuineness;
   faithfulness; sincerity; exactness; truth.
   [1913 Webster]
WordNet (r) 3.0 (2006):
trueness
    n 1: conformity to reality or actuality; "they debated the truth
         of the proposition"; "the situation brought home to us the
         blunt truth of the military threat"; "he was famous for the
         truth of his portraits"; "he turned to religion in his
         search for eternal verities" [syn: truth, the true,
         verity, trueness] [ant: falseness, falsity]
    2: the quality of being loyal [syn: loyalty, trueness] [ant:
       disloyalty]
    3: exactness of adjustment; "I marveled at the trueness of his
       aim"