碰

触れる、関わる、出会う

偶然

会う

会う、偶然出会う

衝突

障害に遭う

to meet / to run into (sb) / to get together (with sb)

to meet / to hold a meeting

to hit a wall / (fig.) to hit a brick wall; to hit a snag; to have the door slammed in one's face

bumper car