警

警
ONけい
KUNいましめる
Meanings
warnguardalertcaution

How to remember

'Kei' — KAY, stay ALERT! There's a WARNING.

Vocabulary

警察けいさつ
police
警告けいこく
warning
警備けいび
security, guard
警報けいほう
alarm, warning
警戒けいかい
vigilance, caution

Related kanji

敬察告防報戒