tipped off is tip off's Past Tense

tip off

US 
UK 
  • na.向…透露消息,泄密;暗中通知某人;(把水等从器皿中)倒干净;使…掉下来;〈俚语〉杀死
  • Web透露消息或密告
Simple Present:tips off  Present Participle:tipping off  Past Tense:tipped off  
na.
1.
忠告,警告,提醒,给...递点子
2.
倒出;〔俚,方〕死;杀死

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard