Pronunciation: (u-hed'), [key]
1. in or to the front; in advance of; before: Walk ahead of us.
2. in a forward direction; onward; forward: The line of cars moved ahead slowly.
3. into or for the future: Plan ahead.
4. so as to register a later time: to set the clock ahead.
5. at or to a different time, either earlier or later: to push a deadline ahead one day from Tuesday to Monday; to push a deadline ahead one day from Tuesday to Wednesday.
6. onward toward success; to a more advantageous position; upward in station: There's a young man who is sure to get ahead.
7. ahead of,
a. in front of; before: He ran ahead of me.
b. superior to; beyond: materially ahead of other countries.
c. in advance of; at an earlier time than: We got there ahead of the other guests.
8. be ahead,
a. to be winning: Our team is ahead by two runs.
b. to be in a position of advantage; be benefiting: His score in mathematics is poor, but he's ahead in foreign languages.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.