THESAURUS
Forerun
announce, antecede, antedate, anticipate, be before, be early, blaze the trail, break the trail, come before, foreglimpse, foresee, foreshow, forestall, foretaste, get ahead of, give notice, go before, go off half-cocked, guide, harbinger, herald, introduce, jump the gun, lead, notify, pace, pioneer, preannounce, precede, precurse, predate, preexist, preindicate, presage, proclaim, run before, usher in, win the start
ROGET THESAURUS
Forerun
Priority
VB
precede, come before, forerun, go before, preexist, dawn, presage, herald, usher in, be beforehand, steal a march upon, anticipate, forestall, have the start, gain the start.
Precession
VB
go before, go ahead, go in the van, go in advance, precede, forerun, usher in, introduce, herald, head, take the lead, lead the way, lead the dance, get the start, have the start, steal a march, get before, get ahead, get in front of, outstrip, take precedence.