| bombard(verb, attack, fight, resist, deny) |
| botch(verb, disable) |
| bottleneck(verb, stop, hold, control, reduce) |
| box in(verb, expression, block, delay, curb) |
| break the fall(expression, idiom) |
| bridle(verb, stop, hold, control, reduce) |
| bring to naught(verb, expression, idiom, ruin, destroy) |
| bring to nothing(expression, idiom) |
| buffer |
| bury(verb, cross, frustrate, blank, thwart) |
| call all bets off(verb, expression, idiom, restrict, cancel) |
| call in question(expression, idiom, attack, fight, resist) |
| call off(verb, expression, stop, end, withdraw) |
| calm |
| cast down(verb, expression, cross, frustrate, blank) |
| cause setback(verb, expression, cross, frustrate, blank) |
| challenge(verb, counteract) |
| charge(equal, compensate, counterbalance, counterweigh, equipoise) |
| choke(verb, stop, control, reduce, restrain) |
| circumduct(cancel, undo, impair, discredit, annul) |