prudent forethought intended to minimize risk; care

Proceed with caution

a warning or admonishment; specif an official warning given to somebody who has committed a minor offence

informal somebody or something that causes astonishment or amusement

She's a proper caution

to warn or advise caution to (somebody)

to warn (somebody under arrest) that their words will be recorded and may be used in evidence

to admonish or reprove (somebody); specif to give them an official warning

(often + against) to urge, advise, or warn