To slacken the pace
curb, hinder, impede, arrest, moderate, obstruct, reduce, slacken, stay, restrain, choke, bottleneck, cause a bottleneck, deadlock, slow down, block, withhold, weaken, lessen, brake, keep back, cog, anchor, rein in; see also halt 2, hinder.
Antonyms speed, hasten*, urge on.
To bring under control
bridle, repress, inhibit, control, curb, restrain, checkmate, counteract, discourage, repulse, neutralize, bar, suppress, squelch, rebuff, snub; see also restrain 1.
Antonyms liberate*, advance, encourage.
To determine accuracy
review, monitor, examine, inspect, verify, validate, balance accounts, balance the books, keep account of, correct, compare, find out, investigate, count, tell, call the roll, take account of, take stock, double-check, go through, go over with a fine-toothed comb*; see also examine 1, verify.
To halt
hold, terminate, cut short; see halt 2, stop 1.
To mark
indicate, tick, tick off, stamp; see mark 1, 2. See syn. study at restrain.