| 调查 | diào chá | investigation / inquiry / to investigate / to survey / survey / (opinion) poll / CL:項|项[xiang4],個|个[ge4] |   |
| 探讨 | tàn tǎo | to investigate / to probe | |
| 审查 | shěn chá | to examine / to investigate / to censor out / censorship | |
| 追究 | zhuī jiū | to investigate / to look into | |
| 辩证 | biàn zhèng | to investigate / dialectical | |
| 追 |  zhuī | to chase / to pursue / to look into / to investigate / to reminisce / to recall / to court (one's beloved) / to binge-watch (a TV drama) / retroactively / posthumously | |
| 探究 | tàn jiū | to investigate / to delve / to probe / to enquire into / to look into | |
| 检察 | jiǎn chá | to inspect / (law) to prosecute / to investigate | |
| 侦查 | zhēn chá | to detect / to investigate | |
| 考查 | kǎo chá | to investigate / to study | |
| 侦破 | zhēn pò | to investigate (as detective) / to solve (crime) / to uncover (a plot) / to sniff out / to break in and analyze / detective work / to scout | |
| 考究 | kǎo jiū | to investigate / to check and research / exquisite | |
| 勘测 | kān cè | to investigate / to survey | |
| 辨证 | biàn zhèng | to investigate | |
| 探求 | tàn qiú | to seek / to pursue / to investigate | |
| 探察 | tàn chá | to investigate / to observe / to scout / to seek out and examine / to explore | |
| 查访 | chá fǎng | to investigate | |
| 勘验 | kān yàn | to investigate / examination | |
| 查勘 | chá kān | to investigate | |
| 格 | gé | square / frame / rule / (legal) case / style / character / standard / pattern / (grammar) case / (classical) to obstruct / to hinder / (classical) to arrive / to come / (classical) to investigate / to study exhaustively | |
| 调 | diào | to transfer / to move (troops or cadres) / to investigate / to enquire into / accent / view / argument / key (in music) / mode (music) / tune / tone / melody | |
| 访查 | fǎng chá | to investigate | |
| 查究 | chá jiū | to follow up a study / to investigate | |
| 究 | jiū | after all / to investigate / to study carefully / Taiwan pr. [jiu4] | |
| 查 | chá | to research / to check / to investigate / to examine / to refer to / to look up (e.g. a word in a dictionary) | |
| 审 | shěn | to examine / to investigate / carefully / to try (in court) | |
| 核 | hé | variant of 核[he2] / to investigate | |
| 盘 | pán | tray / plate / dish / (finance) (bound form) market prices / (computing) (bound form) disk / to coil (a rope, pigtail etc) / to check / to examine / to investigate / to transfer / to sell (property) / to shift / to move (sth big and heavy) / classifier for things resembling a plate or dish / classifier for coils / classifier for games or matches (chess, table tennis etc) | |
| 纠 | jiū | to gather together / to investigate / to entangle / to correct | |
| 廉 | lián | incorruptible / honest / inexpensive / to investigate (old) / side wall of a traditional Chinese house (old) | |
| 勘 | kān | to investigate / to survey / to collate | |
| 谉 | shěn | to investigate / to try (in court) | |
| 查考 | chá kǎo | to examine / to investigate / to try to determine | |
| 审察 | shěn chá | to investigate / to examine closely | |
| 侦办 | zhēn bàn | to investigate (a crime) and prosecute | |
| 按察 | àn chá | to investigate (old) | |
| 推寻 | tuī xún | to examine / to investigate | |
| 查探 | chá tàn | to check / to investigate / to probe (into) | |
| 研考 | yán kǎo | to investigate / to inspect and study | |
| 讨究 | tǎo jiū | to investigate | |
| 钩稽 | gōu jī | to explore / to investigate / to audit (accounts, books etc) | |
| 调查核实 | diào chá hé shí | to investigate / investigation | |
| 一探究竟 | yī tàn jiū jìng | to check out / to investigate | |
| 根究 | gēn jiū | to investigate (sth) thoroughly / to get to the bottom of | |
