Definition of "Ahead" :

adjective: having the leading position or higher score in a contest

"He is ahead by a pawn."

adverb: at or in the front

"I see the lights of a town ahead."

adverb: ahead of time; in anticipation

"When you pay ahead (or in advance) you receive a discount."

adverb: in a forward direction

"Go ahead."

adverb: leading or ahead in a competition

"The horse was three lengths ahead going into the home stretch."

adverb: to a different or a more advanced time (meaning advanced either toward the present or toward the future)

"Moved the appointment ahead from Tuesday to Monday."

adverb: to a more advanced or advantageous position

"A young man sure to get ahead."

adverb: toward the future; forward in time

"I like to look ahead in imagination to what the future may bring."