Adverb

• S: (adv) earlier, before (earlier in time; previously) "I had known her before"; "as I said before"; "he called me the day before but your call had come even earlier"; "her parents had died four years earlier"; "I mentioned that problem earlier"
• S: (adv) ahead, in front, before (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"