ADJ

considerable, extreme, great, utmost
The utmost caution must be exercised when handling explosives
excessive
due
We proceeded with due caution

VERB + CAUTION

exercise
advise, counsel, urge
We urge caution in the use of this medication

PREP

with ~
The information should be treated with some caution

PHRASES

err on the side of caution (= to be too cautious), the need for caution
I must stress the need for caution
sound a note of caution
The minister sounded a note of caution about the economy
cast/throw caution to the wind/winds (= to start taking risks), a word of caution
I would just like to add a word of caution

ADJ

formal
He received a formal caution

VERB + CAUTION

get off with, receive
give sb, issue, let sb off with
They let her off with a caution