| begrudge(verb, decline, reject, oppose, refuse) |
| bicker(verb, consider, oppose, dispute, challenge) |
| blackball(undo, reverse, contradict, void, refute) |
| break with(verb, expression, reject, deny, undo) |
| brief(verb, support, favor, sustain, confirm) |
| bring to naught(verb, expression, idiom, upset, break) |
| buck(verb, cut, separate, cool, prevent) |
| buffer(verb, defend) |
| bump heads(verb, expression, consider, oppose, dispute) |
| burn(oppose, expose, contest, counter, contradict) |
| burn down(expression, oppose, expose, contest, counter) |
| call into question(expression, idiom) |
| call on(verb, expression, decline, reject, oppose) |
| cancel(oppose, expose, contest, counter, contradict) |
| cancel out(expression, oppose, expose, contest, counter) |
| cause instability(verb, expression, reduce, ruin, weaken) |
| champion |
| cheek |
| chew the fat(expression, idiom, consider, deliberate, argue) |
| clear(verb, support, favor, sustain, confirm) |