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to turn on

to turn on

133 4.8
To suddenly become unfriendly or aggressive towards someone
  • phrasal verb
  • /tɜrn ɑn/
translation icon : volverse contra
  • You were gonna turn on me, just like the rest of them.

They're incentivizing neighbors to turn on each other for cash.

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Examples

  • When things aren't going well, people start to turn on you, question your character, question just everything.

  • People we'd been working with, they turned on us.

  • Oh, man, the crowd is turning on her.

  • Even your own family turns on you after a while.

  • And then they come home and like sports writers turn on them, the public turns on them.

  • Well, the crowd turned on her like, how dare you, right?

  • So everyone turned on each other and now the country is in ruins.

  • I said no, and now she's turning on me.

  • And then she accuses her mom and her sister of turning on her, accusing them of witchcraft.

  • I never expected my friend to suddenly turn on me after everything we've been through.

Synonyms

to turn ugly
vsto turn on
8 5.1

To become violent or angry suddenly

is sudden hostility but not necessarily violent
to round on
vsto turn on
  • UK
1 8.3

To suddenly attack someone with angry words

is sudden hostility toward someone without focusing on words
to flip the bitch switch
vsto turn on
  • Offensive
9.9

To suddenly become very angry and behave in a mean way

is the neutral description of sudden hostility without crude language
to hit the bitch switch
vsto turn on
  • Offensive
9.9

To suddenly become very angry and act aggressive

is the same sudden hostility but less offensive in wording

Antonyms

773 1.0

Kind and helpful toward other people

How Hostile

attack
548 3.2
to lash out
71 5.6
to turn on
133 4.8
to shun
26 4.6
to snub
7 6.3

Surface Forms

turn on infinitive
turned on past
turned on past participle
turning on present participle
turns on third person singular

Morphology

turn + on

The meaning 'to depend on' is not directly derivable from the literal senses 'turn' (to change) and 'on' (active/powered), so a B1 learner who knows the constituents would likely not predict this sense. There is a loose, somewhat metaphorical link (turn + on/upon → be determined by), but the particle usage is idiomatic and less frequent, making the expression only partially transparent.

Etymology

Turn on may come from the image of someone suddenly turning their body or face toward another person and attacking; the quick physical turn became a way to say someone changes from friendly to hostile. That's why this use means 'to suddenly become hostile'.