调查
Pinyin: diào chá
to investigate
Example sentence
警察正在调查这件事。
Jǐngchá zhèngzài diàochá zhè jiàn shì.
The police are investigating the matter.
What 调查 means
调查 (diào chá) is a Chinese word meaning “to investigate”. It belongs to the Work, Study & Feelings topic and appears at HSK 4, so it is one of the words worth learning early when you study Chinese.