A great way to remember a character is by searching for patterns across all the words that contain it. Can you find similarities?
|报警||6||bào jǐng||call the police|
|警告||6||jǐng gào||warning, caution; warn, remind|
|警惕||6||jǐng tì||be on guard, be vigilant|
|考察||6||kǎo chá||inspect, make an on-the-spot investigation|