渉 interfere

if you interfere with my business, I'll SHOW you the door.

All this water interferes with my walking across the ocean.

interfere or meddle. ★★☆☆☆
干 (dry out) + 渉 (interfere) = 干渉 (interfere or meddle.)

negotiate ★★☆☆☆
交 (combine) + 渉 (interfere) = 交渉 (negotiate )