| brush(touch, physical) |
| butt(verb, hit, strike, smash, crash) |
| carom(verb, hit, strike, smash, crash) |
| claw(touch, physical) |
| collide with(verb, expression, phrasal verb, hit, smash) |
| combat(verb, meet, attack, disturb, oppose) |
| come to blows(verb, expression, idiom, fight, conflict) |
| complain(verb, argue, disagree, tangle, carp) |
| contact(verb, light, touch, oppose, see) |
| contravene |
| cope with(expression, play, fight, challenge, face) |
| crack up(expression, strike, jolt) |
| crush(verb, break, beat, separate, touch) |
| defy(verb, oppose, challenge, face, disagree) |
| demur(verb, disagree) |
| discord(noun, disturb, oppose, dispute, disagree) |
| disharmonize(disturb, oppose, dispute, disagree, vary) |
| face(verb, meet, attack, light, oppose) |
| fall aboard(expression, idiom) |
| fall foul of(verb, expression, idiom, phrasal verb, impulse) |