knock off

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

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

decrease, diminish, discount, downsize, dwindle, knock down, lessen, lower, reduce

abbreviate, abridge, clip, crop, curtail, cut, cut back, cut down, dock, pare, prune, retrench, shorten, slash, trim, truncate, whittle