1 [U] great care, because of possible danger 谨慎；小心: Any advertisement that asks you to send money should be treated with caution.对任何让你寄钱的广告都要小心对待。
2 [C] a spoken warning that a judge or police officer gives to sb who has committed a small crime （法官或警察发出的）口头警告
caution²
/ˈkɔ:ʃn ||; ˈkɔʃən/verb[I,T]
1caution (sb) against sth to warn sb not to do sth 告诫某人别做某事: The President's advisers have cautioned against calling an election too early.总统的顾问警告不要过早举行选举。
2 to give sb an official warning 给某人正式警告: Dixon was cautioned by the referee for wasting time.狄克逊因浪费时间被裁判警告。