leader, n. 1. chief, head, doyen, principal, Inf. boss, Inf. bossman, Inf kingpin, Inf number one, Inf. Mr. Big, SI. big cheese, SI. biggest fish or frog in the pond; director, superior, dean, chairman; manager, overseer, supervisor, superintendent, Inf. super, foreman, headman, Brit, gaffer.
2. sachem, chieftain, warlord, war chief, commander, commandant; ruler, overlord, lord, master, lord and master, paramount, suzerain.
3. pacesetter, pacemaker, trend-setter; mover, prompter, actuator, motivator, encourager, inspirer, firer, spark, Inf. sparkplug; ringleader, bellwether, SI. the brains.
4. conductor, orchestra conductor, orchestra leader, band leader, bandmaster, concertmaster, Konzert-meister; choirmaster, chorister, precentor, Kapellmeister, Eccles. cantor; coryphaeus; band major, drum major.
5. forerunner, antecedent, precursor, predecessor, foregoer; front or lead runner, outrider, vaunt-courier, avant-courier; advance guard, vanguard, spearhead, cutting edge; point, point man, decoy; pioneer, frontiersman, pathfinder, trail blazer, explorer, scout; innovator, groundbreaker, avant-gardist.
6. loss leader, lead item, SI. hot item, special, feature.
leadership, n. 1. headship, managership, proctorship, governorship, directorship, superintendency; mastership, lordship, seigniory; captaincy, chieftainship, kingship, premiership, presidency, dictatorship.
2. supremacy, superiority, primacy, hegemony, dominance, domination, mastery; dominion, reign, sovereignty, suzerainty; rule, command, control; influence, sway, power, potency, Literary, puissance, Inf. say or say-so, Inf. clout, SI. muscle.
3. direction, guidance, instruction, advice, counsel, suggestion, recommendation; management, administration, supervision, superintendence, regulation, governance, lead, leading, handling, Inf. running.
leading, adj. 1. chief, cardinal, prime, primary, main, most important, uppermost, topmost, headmost, foremost; supreme, paramount, preeminent, superemi-nent, toprank, of the first rank, crowning, highest, maximum, sovereign, suzerain; dominant, predominant, prevailing, preponderant, hegemonic; best, greatest, second to none; inimitable, incomparable, beyond compare, in a class by itself, peerless, matchless; unrivaled, unequaled, unapproached, unsurpassed, unexcelled.
2. first, front, frontal, advance, antecedent, anterior; fore, forward, foregoing, heading, precessional; prior, preceding, precedent.
3. ruling, governing, commanding, reigning; directing, directive, guiding, managing, managerial, supervising, supervisory, superintendent, in charge; controlling, regulating, handling, Inf. running.
leadoff, n. start, beginning, commencement, onset, outset, outbreak, dawn; initiation, actuation, instigation, creation, inception; institution, inauguration, introduction, constitution, establishment, origination, organization, foundation; All Inf. kickoff, jump-off, send-off, takeoff, blast-off.
leaf, n. 1. frond, leaflet, foliole, blade, All Bot. bract, bractlet, bracteole; flag, needle, pine needle, pad, lily pad; petal, seed leaf, Bot. cotyledon, Bot. calyx, Bot. sepal.
2. foliage, foliation, foliature; verdure, Bot. vernation, frondescence, flora, vegetation.
3. page, sheet, folio, insert, flyleaf, Print, recto, Print, verso; title page, imprint, table of contents, list of