the GNU version of the Collaborative International Dictionary of English
ad. On or at the top.
The Century Dictionary and Cyclopedia
On or at the top.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. on, to, or at the top
Word Usage
"For the first time in 11 months, Rory McIlroy walked off the 18th green in the middle of a major championship and did not see his name atop the leaderboard."