jǐng​shì

warn

警示 jǐng​shì
warn verb
to warn or alert someone to potential danger or risk

The teacher often uses this example to warn students not to waste their time.

warning noun
a warning sign, signal, or cautionary message

A warning sign is posted by the road, reminding drivers to slow down.

Frequency

Movie subtitles
1.55 per million appears in 1% of films
Written text
9.80 per million

Sources

Definitions
CC-CEDICT