查证

查证	chá zhèng	to check / to verify
查	Zhā	surname Zha
查	chá	to research / to check / to investigate / to examine / to refer to / to look up (e.g. a word in a dictionary)
查	zhā	variant of 楂
证	zhèng	to admonish / variant of 证
证	zhèng	certificate / proof / to prove / to demonstrate / to confirm / variant of 症