ahead of[preposition]Synonyms: before, ante, ere, in advance of, preceding, prior to, to
 [TahlilGaran] English Synonym Dictionary ▲
 ahead of prep. 1. In a position of advantage or power over. 
 He studies all the time, because he wants to stay ahead of his classmates. 2.
 He studies all the time, because he wants to stay ahead of his classmates. 2. In front of; before. 
 The troop leader walked a few feet ahead of the boys. 3.
 The troop leader walked a few feet ahead of the boys. 3. Earlier than; previous to, before. 
 Betty finished her test ahead of the others.
 Betty finished her test ahead of the others.  [TahlilGaran] English Idioms Dictionary ▲