1.
forewarn a person of the danger
事先警告某人有危险
2.
To counsel(another) against something to be avoided; caution.
警告某人劝告（他人）不要做应避免的事；警告
3.
warn sb that his behaviour is unacceptableand will no longer be tolerated
警告某人其行为已令人无法忍受.,
4.
forewarn a person that it may be dangerous to swim here
事先警告某人在这里游泳可能有危险
5.
Notice warning someone that he face bankruptcy If he fail to pay money which he owes
警告某人的通知，提醒他若不还债将面临破产
6.
give a caution to(sb)
对（某人）给予警告
7.
make a bell sound to call,warn,etc sb
鸣铃召唤、警告...某人
8.
Give sb anadvance warning or hint
事先给某人警告或暗示
9.
caution(sb)against sth; warn or advise (sb)against sth
警告或劝告（某人）防止某事物
10.
let sb off with a caution
给某人一个警告而放过他.
11.
give sb.a warning look
向某人使一个警告的眼色
12.
Wag one's fingers at sb.
向某人摆动手指（表示威胁、警告、责备等）
13.
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）
14.
You use“ let” when you are offering to do something, making suggestions, or telling someone to do something.
祈使句用以请求或告诉某人做某事，提出建议，警告或指示。
15.
To record charges against(a person)on a police blotter.
作控告笔录在警察记事簿上记录（对某人的）指控
16.
Cautionary advice or warning.
劝告，警告劝人谨慎的建议或警告
17.
Inform upon sb.
告发某人，检举某人
18.
a person who alarms others needlessly.
不必要地警告他人的人。