水域

水域	shuǐ yù	waters / body of water
水	Shuǐ	surname Shui / Shui ethnic group
水	shuǐ	water / (after a name) ... River / to swim (used mostly in 会水 and 水性) / (coll.) lacking in substance; shoddy / (bound form) additional cost; extra income / classifier for washings of a garment
域	yù	field / region / area / domain (taxonomy)