衝
ショウ, つ.く
collide, brunt, highway, opposition (astronomy), thrust, pierce, stab, prick
JLPT1 G7 S15 F972
As per 重# (run through) + 行 (straight, crossing roads) → *main road* running through a settlement → *collision* (← collision of objects in the act of running through).
[Full Kanji Etymology List]