adverb: at or in the front
Example:I see the lights of a town ahead.
adverb: ahead of time; in anticipation
Example:When you pay ahead (or in advance) you receive a discount.
adverb: in a forward direction
Example:Go ahead.
adverb: leading or ahead in a competition
Example: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)
Example:Moved the appointment ahead from Tuesday to Monday.
adverb: to a more advanced or advantageous position
Example:A young man sure to get ahead.
adverb: toward the future; forward in time
Example:I like to look ahead in imagination to what the future may bring.