quit

abandon, vacate

drop out (of), throw up

break off, break up, cease, close, conclude, end, expire, finish, halt, leave off, shut off

pause, taper off

throw up

round (off or out), terminate, wind up, wrap up

complete, conclude, finish

close (down)

deactivate

block, blockade, dam, delay, detain, hinder, hold, hold back, impede, kibosh, obstruct, stem

call, suspend

arrest, brake, check, clamp down, rein (in), squash, squelch, stamp, stanch (or staunch), stunt, suppress, turn back

pause, stay, suspend

discard, ditch, dump, fling, jettison, junk, scrap, shed, shuck (off), throw away, throw out

deliver, give up, hand over, relinquish, surrender, yield

escape, retreat (from), take off (from), vacate, withdraw (from)

abjure, cut off, disown, reject, renounce, repudiate, separate (from)

acquiesce

defer

desist (from), lay off (of), refrain (from)

knock off, pack (up or in)

break down, conk (out), cut out, stall

pause, stay, suspend

abate, peter (out), wind down

set out, start, strike out

abscond, decamp, escape, evacuate, flee, fly, get out, run away, scat, scram, skip

go out, light out, step out

abandon, desert, forsake, vacate

emigrate

adjourn, remove, retire, retreat, withdraw

check, collect, compose, constrain, contain, control, curb, handle, inhibit, quiet, repress, restrain

moderate, modulate, temper

act, impersonate, play