A great way to remember a character is by searching for patterns across all the words that contain it. Can you find similarities?
|调查||4||diào chá||survey, investigate|
|查获||6||chá huò||hunt down and seize|
|检讨||6||jiǎn tǎo||study, inspect; make a self-criticism|
|检验||6||jiǎn yàn||inspect, test, examine|
|审查||6||shěn chá||examine, censor|