掌握 | zhǎng wò | to grasp (often fig.) / to control / to seize (initiative, opportunity, destiny) / to master / to know well / to understand sth well and know how to use it / fluency | |
熟悉 | shú xī | to be familiar with / to know well | |
深知 | shēn zhī | to know well / to be fully aware of | |
熟识 | shú shi | to be well acquainted with / to know well | |
谙 | ān | to be versed in / to know well | |
通 | tōng | to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc |