tip off
Give insider information
Tip off has two distinct uses.
As a verb phrase, to tip someone off is to give them advance warning or secret information: Someone tipped off the police about the robbery.
As a noun, a tipoff is that warning itself, or the opening play of a basketball game when the ball is tossed up between two players.
Alert about danger
- heads-upInformal advance warning
- alertWarning or watchfulness
- signalMessage-conveying cue
- forewarnAlert in advance
caution · red flag · clue · hint · advance notice · notify · indicator · word
Insider who reports misconduct
- snitchOne who tells authorities
- informantOne who provides intelligence
- leakEscape through a breach
- ratRodent or informer
tattle · insider · expose · disclosure · reveal · betray · divulge · squeal
Concealed information
- undercoverSecretly engaged in espionage
- spyCovert information gatherer
- confidentialMeant to stay secret
- hush-hushHighly confidential matter
discreet · leak · insider · intelligence · informant · mole · deep throat · anonymous
Contested aerial retrieval
- center courtPrimary competition arena
- refereeSports rule enforcer
- tossLight, casual throw
- pregameBefore the main event
starting lineup · basketball · arena · court · NBA · player · center
warning
Alert about danger
forewarn · caution · red flag · clue · hint · advance notice · notify · indicator · word · pointer
whistleblower
Insider who reports misconduct
rat · tattle · insider · expose · disclosure · reveal · betray · divulge · squeal · grass
secret
Concealed information
- undercoverSecretly engaged in espionage
- spyCovert information gatherer
- confidentialMeant to stay secret
hush-hush · discreet · leak · insider · intelligence · informant · mole · deep throat · anonymous · classified
jump ball
Contested aerial retrieval
- center courtPrimary competition arena
- refereeSports rule enforcer
- tossLight, casual throw
pregame · starting lineup · basketball · arena · court · NBA · player · center
- disclosurerevealing, disclosing, disclosure, disclose, divulge
- communicationtelephone, conversation, inform, hand signal, messages
- revealreveal, disclose, expose, unmask, unveil
- Informerssnitch, informer, informant, fink, squealer