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to tip off

to tip off

68 6.8
Secretly tell someone important information to warn or help them
  • phrasal verb
  • /tɪp ɔf/
translation icon : avisar
  • Thanks for tipping me off.

Well, this event is what tipped off the scientists to how powerful you are.

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Examples

  • A friend of mine at Justice tipped me off.

  • Someone may have tipped off the wire services or cable TV.

    Fiction book (1997)
  • I think someone tipped them off.

  • We were just about to close the deal, but someone tipped him off.

  • Someone in Berlin has tipped him off that his girl has been seeing an American officer.

  • The police said that someone had tipped them off, and that the boys' fingerprints were at the construction site.

    Fiction book (1993)
  • Today, it was discovered by the soldiers very early on; perhaps they were tipped off by a collaborator.

    Fiction book (1997)
  • Someone in Palm Springs tipped off the local press... and they had a kind of welcome home parade for him.

  • Why this incident didn't tip off the Pacific Command to the impending attack is still not clearly understood.

    Academic text (1991)
  • The whistleblower decided to tip off the authorities about the illegal activities at the company.

Synonyms

to tip
vsto tip off
129 5.3

To give someone secret information to help or warn them

is the same but often stresses warning or helping avoid trouble
to inform
vsto tip off
41 6.8

To secretly tell the police about someone's illegal actions

is secret too but focuses on warning or helping not accusing criminals
to clue in
vsto tip off
1 3.9

To tell someone about something they did not know

is secret and often warns or helps avoid trouble rather than general informing

Antonyms

90 2.5

To say nothing or not tell a secret

How Secret

to whisper
586 1.0
to tip off
68 6.8
to tell
1.0
to inform
1.0
to announce
1.5

Surface Forms

tip off infinitive
tipped off past
tipped off past participle
tipping off present participle
tips off third person singular

Morphology

tip + off

The verb 'tip' already denotes giving advance or secret information, and the particle 'off' does not produce a highly idiomatic meaning here; the phrasal verb simply expresses that same act of secretly informing. This is a productive, compositional phrasal verb pattern in English, so a B1 learner who knows the constituents will readily infer the meaning.

Etymology

Tip off may come from the image of tip and off, like tipping a jar so a hidden thing falls out and is shown. So, to tip someone off means to quietly give information or a 'warning', revealing a 'secret' so they can avoid trouble.