caution
noun uk/ˈkɔː.ʃən/ us/ˈkɑː.ʃən/
(CARE)
C1 [ U ]谨慎，小心，慎重
great care and attention
We need to proceed with/exercise caution (= be careful in taking action, making decisions, etc.) 我们必须谨慎行事。
They treated the story of his escape with (some/great/extreme) caution (= thought that it might not be true). 他们对他逃跑的报道有些／相当／极为怀疑。
(WARNING)
[ C ] UK（警察对违法者的）口头警告
a spoken warning given by a police officer or official to someone who has broken the law
As it was her first offence, she was only given a caution. 由于是初犯，所以只给了她一个口头警告。
[ C or U ]告诫;警告，提醒
advice or a warning
Just a word of caution - the cheaper models probably aren't worth buying. 只是提醒一句——更为便宜的型号很可能不值得购买。
(FOOTBALL)
[ C ]（足球比赛中，裁判出示黄牌作出的）警告
a punishment for breaking the rules in a football game in which the referee writes the player's name in a book and holds up a yellow card
Synonym: booking (punishment)
caution
verb [ T ] uk/ˈkɔː.ʃən/ us/ˈkɑː.ʃən/
(police)
UK（警察）正式警告
If the police caution someone, they give them an official warning.
C2 formal告诫;提醒
to warn someone
The newspaper cautioned its readers against buying shares without getting good advice first. 报纸告诫读者事先没有获得好的建议，不要购买股票。
(FOOTBALL)
（足球比赛中，裁判出示黄牌）警告
If a football referee cautions a player, he punishes them for breaking the rules by writing their name in a book and holding up a yellow card.
Synonym: book (MAKE A RECORD)