THESAURUS
precursor
advance guard, agent, airhead, alterant, alterative, alterer, ancestor, ancestors, announcer, antecedence, antecedency, antecedent, anteposition, anteriority, apprentice, architect, artificer, artist, author, avant-garde, battle line, beachhead, begetter, beginner, bridgehead, buccinator novi temporis, builder, catalyst, catalytic agent, colonial, colonist, colonizer, conceiver, constructor, craftsman, creator, danger sign, designer, deviser, discoverer, dominion, early bird, early comer, early riser, early symptom, effector, engenderer, engineer, executor, executrix, falling barometer, farthest outpost, father, ferment, first arrival, first line, forefront, foregoer, foregoing, forerunner, foreshadower, founder, front, front line, front position, front rank, front-runner, gathering clouds, generator, grower, harbinger, heading, herald, high sign, homesteader, immigrant, inaugurator, industrialist, initiator, innovationist, innovator, instigator, institutor, introducer, inventor, journeyman, le pas, leading, leaven, line, maker, manufacturer, master, master craftsman, messenger, modificator, modifier, mother, nester, omen, organizer, originator, outguard, outpost, outrider, past master, pioneer, planner, planter, point, precedence, precedency, precedent, preceding, precession, predecessor, preference, prefixation, preliminary sign, prelude, premise, premonitor, premonitory sign, premonitory symptom, presager, prime mover, priority, prodroma, prodrome, producer, prothesis, prototype, quarantine flag, railhead, raiser, realizer, red flag, red light, scout, settler, shaper, sire, skull and crossbones, smith, sooner, spearhead, squatter, storm petrel, stormy petrel, superiority, symptom, the lead, thundercloud, thunderhead, top priority, transformer, transmogrifier, urgency, van, vanguard, warning sign, warning signal, wright, yeast, yellow flag, yellow jack
ROGET THESAURUS
precursor
Precedence
N
precedence, coming before, the lead, le pas, superiority, importance, antecedence, antecedency, anteriority,
precursor, priority, precession, anteposition, epacme, preference, preceding, precedent, antecedent, anterior, prior, before, former, foregoing, beforementioned, abovementioned, aforementioned, aforesaid, said, precursory, precursive, prevenient, preliminary, prefatory, introductory, prelusive, prelusory, proemial, preparatory, before, in advance, seniores priores, prior tempore prior jure.
Precursor
N
precursor, antecedent, precedent, predecessor, forerunner, vancourier, avant-coureur, pioneer, prodrome, prodromos, prodromus, outrider, leader, bellwether, herald, harbinger, foreboding, dawn, avant-courier, avant-garde, bellmare, forelooper, foreloper, stalking-horse, voorlooper, voortrekker, prelude, preamble, preface, prologue, foreword, avant-propos, protasis, proemium, prolusion, proem, prolepsis, prolegomena, prefix, introduction, heading, frontispiece, groundwork, preparation, overture, exordium, symphony, premises, prefigurement, omen, precursory, prelusive, prelusory, preludious, proemial, introductory, prefatory, prodromous, inaugural, preliminary, precedent, a precedent embalms a principle.
Priority
N
priority, antecedence, anteriority, precedence, pre-existence, precession,
precursor, the past, premises, prior, previous, preceding, precedent, anterior, antecedent, pre- existing, pre-existent, former, foregoing, aforementioned, before- mentioned, abovementioned, aforesaid, said, introductory, 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, prior tempore prior jure.
Precession
N
precession, leading, heading, precedence, priority, the lead, le pas, van,
precursor, leading, precedent, in advance, before, ahead, in the van, in the lead, foremost, headmost, in front, at the head, out in front, way out in front, far ahead, seniores priores, ahead of his time.