run

curve, downside, shift, swing, turn, turnabout, upside

custom, habit, propensity, tenor, way

countercurrent, countertrend

undercurrent, undertow

arroyo, billabong [Australian], fresh, freshet, runoff

bayou, coulee, slough (also slew), stream, wash

canal, channel, cut, cutoff, gut, kill, millrace, millstream, race, watercourse, waterway

affluent, branch, confluent, distributary, influent, tributary

spell, stretch

span, tenure, term

hitch, tour, turn

half-life

age, longevity

authority, clutch, command, control, dominion, grip, hold, mandate, mastery, power, sway

range, room, space

blank check, carte blanche

dysentery, shigellosis

scour(s)

bound, canter, leap, lope, shag, skip, spring

barrel, belt, blast, blaze, blow, bolt, bomb [slang], bowl, breeze, bustle, buzz, cannonball, careen, course, foot (it), hare, hasten, hie, hoof (it), hotfoot (it), hump, hurl, hurry, hurtle, hustle, jet, leg (it), pelt, race, ram, rip, rocket, rush, rustle, shoot, speed, tear, whirl, whisk, zip, zoom

nip, patter, scoot, scurry, scuttle, step (along)

abscond, clear out, decamp, elope, escape, get (away), get out, lam, light out, make off, mizzle [chiefly British], scarper [British], scat, scram, skip (out), skirr

cross, cut, pass

course, follow, span, traverse

alternate, fluctuate, move, shift

change, mutate

extend, reach, stretch, sweep

arise, disembogue, effuse, emanate, issue, spring

course, race, rush

fountain, gush, spout, spurt

deluge, engulf, flood, inundate, overflow, overrun, swamp

cascade, dribble, drip, gutter, riffle, ripple, sheet, trickle

flush, wash out

beetle, dart, flit, scamper, scud, scuffle

stampede, streak, whiz (or whizz)

gallop, jog, sprint

accelerate, quicken, step out

catch up, fast-forward, outpace, outrun, outstrip, overtake

arrow, beeline

go, gravitate

indicate, point, suggest

shepherd

wrangle

egg, exhort, flog, goad, hound, press, prick, prod, prompt, scourge, spur, whip

use

maneuver, manipulate, ply, wield

command, control, direct, drive, guide, pilot, steer

alter, change, metamorphose, modify, mutate, transfigure, transform, transmute

found, gutter, smelt, try

dissolve, render

soften, thin

care (for), mind, watch

lead, pilot, steer

guard, protect, safeguard

micromanage, stage-manage

codirect, comanage

kick over, turn over

charge, electrify, energize, fire, fuel, generate, power, push

discharge, launch, release, switch, trip

reactivate, recharge

arouse, excite, jump-start, kick-start, stimulate, vitalize

ignite, incite, instigate, provoke, quicken, stir up

accelerate, catalyze, speed (up), step up

list (for)

amount (to), come (to), total

command, exact

ask, demand

affiliate, ally, attach, band, bond, club, collaborate, collude, confederate, conjoin, connect, cooperate, couple, gang, get along, get on, group, interrelate, join, knot, league, link, mingle, mix, rally, relate, side, socialize, team, tie, wed

befriend, friend

accompany, chaperone (or chaperon), escort

hunt, search (for), seek

eye, observe, watch