2. RELATIVE TIME; Time with reference to succession
be beforehand (be early) [more]; steal a march upon, anticipate, forestall; have the start, gain the start.
[Adjectives] prior, previous; preceding, precedent; anterior, antecedent; pre-existing, pre-existent; former, foregoing; before-mentioned, above-mentioned; aforesaid, said; introductory (precursory) [more].
[Adverbs] before, prior to; earlier; previously; afore, aforehand, beforehand, ere, theretofore, erewhile; ere then, ere now, before then, before now; erewhile, already, yet, beforehand; on the eve of.