FANG-4

('fang' in the fourth tone)

There are about 20 characters in Chinese that are spoken 'fang'. One is 方 = fang(1) = square. All others are a combination of 方 with a radical, or with another character.

放 = to release

Sign in train toilets:

请放水冲洗 = Qing(3) fang(4) shui(3) chong(1)xi(3)! = Please flush! (Lit. Please release water flush!)