before

prep.

[1]	ahead of , in advance of , in front of , forward of
[2]	in front of , in the presence of
[3]	preceding , previous/anterior to , prior to , on the eve of
[4]	in preference to , rather than , sooner than , more willingly than

conj.

[1]	previous to/preceding the time when

adv.

[1]	earlier , previously , earlier , already , beforehand , formerly , in the past , once
[2]	ahead , in advance , in front , in the forefront , first , in the vanguard , (Colloq) up front
[3]	ahead , in the future , to come