Definitions
1.adverbAt an earlier time."I've never done this before."
2.adverbIn advance.
3.adverbAt the front end.
4.prepositionEarlier than (in time)."I want this done before Monday."
5.prepositionIn front of in space."He stood before me."
6.prepositionIn the presence of."He performed before the troops in North Africa."
7.prepositionUnder consideration, judgment, authority of (someone)."The case laid before the panel aroused nothing but ridicule."
8.prepositionIn store for, in the future of (someone).
9.prepositionIn front of, according to a formal system of ordering items."In alphabetical order, "cat" comes before "dog", "canine" before feline"."
10.prepositionAt a higher or greater position than, in a ranking."An entrepreneur puts market share and profit before quality, an amateur intrinsic qualities before economical considerations."
11.conjunctionIn advance of the time when.
12.conjunctionRather or sooner than."I'll die before I'll tell you anything about it."