(1) Going or proceeding or going in advance; showing the way
"We rode in the leading car"
"The leading edge of technology"
(2) Having the leading position or higher score in a contest
"He is ahead by a pawn"
"The leading team in the pennant race"
(3) The activity of leading
"His leadership inspired the team"
(4) Thin strip of metal used to separate lines of type in printing