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to kick in

to kick in

126 3.4
Start to have an effect after a short delay
  • phrasal verb
  • /kɪk ɪn/
translation icon : hacer efecto
  • It usually takes about 30 minutes for the medicine to kick in and provide relief.
  • begin to kick in
  • rules kick in

And when that kicks in, it's bliss, you know?

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Examples

Synonyms

to set in
vsto kick in
64 5.4

To begin and then continue, often about bad things like rain or worry

is neutral and can mean an effect starts after a delay

Antonyms

324 3.6

To stop or come to an end

How Quickly

to start
1.0
to activate
715 3.6
to kick in
126 3.4

Surface Forms

kick in infinitive
kicked in past
kicked in past participle
kicking in present participle
kicks in third person singular

Morphology

kick + in

The contribution sense is somewhat derivable from 'kick' (to thrust) + 'in' (into), as if pushing money into a shared pot, so there is a transparent metaphorical link. However, this is a colloquial, extended use of the verb with multiple senses (e.g. take effect), and the money-specific meaning is not fully predictable for a B1 learner without prior exposure.

Etymology

Kick in comes from the image of giving a sudden kick so something moves in and starts, like kicking a machine or the moment a medicine suddenly works inside you. So kick in means 'to start to have an effect'.