caution
/ˈkɔ:ʃn; `kɔʃən/ n
1 [U] being careful to avoid danger or mistakes; prudence 小心; 谨慎; 慎重
Proceed with caution. 小心行事.
You should exercise extreme caution when driving in fog. 在雾中开车要极为小心.
2 [C] warning, esp one given to sb who has committed a minor crime, that further action will be taken if he commits it again 警告（尤指某人已犯轻罪, 下不为例）
let sb off with a caution 给某人一个警告而放过他.
3 [sing] (dated infml 旧, 口) amusing or surprising person 使人发笑或惊奇的人.
4 (idm 习语) throw, fling, etc caution to the winds stop being cautious in one's actions or when deciding what to do 不顾一切; 鲁莽行事. caution, v
1
(a) [Tn, Dn.t]
warn (sb) to be careful 提醒或警告（某人）要小心
We were cautioned not to drive too fast. 人家提醒我们车不要开得太快.
(b) [Ipr, Tn.pr]
~ (sb) against sth warn or advise (sb) against sth 警告或劝告（某人）防止某事物
I would caution against undue optimism. 我奉劝不要过於乐观.
2 [Tn] give a caution(2) to (sb) 对（某人）给予警告
be cautioned by a judge 受到法官的警告.