ahead in WordNet English dictionary

1. at or in the front
   "I see the lights of a town ahead"; "the road ahead is foggy"; "staring straight ahead"; "we couldn't see over the heads of the people in front"; "with the cross of Jesus marching on before"
   ahead  in front  before  ahead  in front  before 
   
2. ahead of time; in anticipation
   "when you pay ahead (or in advance) you receive a discount"; "We like to plan ahead"; "should have made reservations beforehand"
   ahead  in advance  beforehand  ahead  in advance  beforehand 
   
3. in a forward direction
   "go ahead"; "the train moved ahead slowly"; "the boat lurched ahead"; "moved onward into the forest"; "they went slowly forward in the mud"
   ahead  onward  onwards  forward  forwards  forrader  ahead  onward  onwards  forward  forwards  forrader 
   
4. leading or ahead in a competition
   "the horse was three lengths ahead going into the home stretch"; "ahead by two pawns"; "our candidate is in the lead in the polls"; "way out front in the race"; "the advertising campaign put them out front in sales"
   ahead  out front  in the lead  ahead  out front  in the lead 
   
5. 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"; "pushed the deadline ahead from Tuesday to Wednesday"
   ahead  ahead 
   
6. to a more advanced or advantageous position
   "a young man sure to get ahead"; "pushing talented students ahead"
   ahead  ahead 
   
7. toward the future; forward in time
   "I like to look ahead in imagination to what the future may bring"; "I look forward to seeing you"
   ahead  forward  ahead  forward 
   

1. having the leading position or higher score in a contest
   "he is ahead by a pawn"; "the leading team in the pennant race"
   ahead  in the lead  leading