ahead

adverb6

1. •
   in front of someone, in the direction they are facing or moving

   • The island was directly ahead.
   • Just ahead you can see the cliffs.
2. •
   So as to be further advanced, either spatially or in an abstract sense; to be superior.

   • He finished two laps ahead of me.
   • In all of his classes Jack was ahead.
3. •
   In or for the future.

   • There may be tough times ahead.
   • You've got to think ahead so as not to be unprepared.
4. •
   To a later time.

   • Set the clock ahead an hour.
   • Push the deadline ahead a day, from the 20th to the 21st.
5. •
   At an earlier time; beforehand; in advance.

   • He paid his rent ahead.
6. •
   To an earlier time.

   • Push the deadline ahead a day, from the 21st to the 20th.