考究

考究	kǎo jiū	to investigate / to check and research / exquisite
考	kǎo	to beat / to hit / variant of 考 / to inspect / to test / to take an exam
考	kǎo	to check / to verify / to test / to examine / to take an exam / to take an entrance exam for / deceased father
究	jiū	after all / to investigate / to study carefully / Taiwan pr. [jiu4]