adj.
1.indicating the most important performer or role
2.going or proceeding or going in advance
3.greatest in importance or degree or significance or achievement
4.having the leading position or higher score in a contest
5.purposefully formulated to elicit a desired response leading n.
1.thin strip of metal used to separate lines of type in printing
2.the activity of leading
Idiom of the Day
go off on a tangent
to suddenly change one's line of thought or course of action
The speaker suddenly went off on a tangent and began to speak about something totally different.