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in the act

in the act

39 4.4
While someone is doing something wrong and someone else sees them
  • idiom
translation icon : en el acto
  • The two would-be bandits... ...were caught in the act by a Good Samaritan... ...whose identity remains unknown.
  • caught in the act
  • engaged in the act
  • in the act of creation

had some connection with the Silence power within, perhaps only in the act of creation, perhaps not in their private life,

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Examples

  • Identifying the paparazzi and catching them in the act has been "a tough nut to crack," Dunn said.

    Academic text (2013)
  • And you were caught in the act right here.

  • We need to catch him in the act.

  • We're gonna have to catch these guys in the act.

  • Did your father ever catch you in the act?

  • You said we had to find the culprit, catch her in the act.

  • We knew who he was but we just couldn't catch him in the act.

  • I don't like being caught in the act any better than anyone else.

    Fiction book (1994)
  • Set up your webcam and you're gonna catch him in the act.

  • They were surprised when they walked in and found their neighbors stealing flowers, catching them in the act.

Synonyms

caught in the act
vsin the act
5 3.7

Someone finds a person while they are doing something wrong

focuses more on doing the action itself than on discovery
in flagrante delicto
vsin the act
  • NSFW
1 9.9

Being caught in the very act of doing something illegal or embarrassing with another person

is the general phrase for wrongdoing rather than specifying sexual compromise
in delicto
vsin the act
  • Formal
9.9

Caught in the act of committing a crime

is the ordinary phrase used more broadly outside legal contexts

Surface Forms

in the act positive

Morphology

in + the + act

The meaning 'while doing something; caught in the process' is directly and transparently derived from 'in' (inside/during) + 'the' + 'act' (a deed or action), so a learner who knows the words can compose the sense. This preposition + article + noun pattern is cross-linguistically common and follows standard English composition, making it immediately comprehensible to a B1 learner.

Etymology

In the act comes from the simple image of someone being caught in the middle of doing the act, like a thief with their hands on a stolen item. That's why the phrase means 'while doing something', often something wrong.