Health

kick in

start having an effect

If something kicks in, it starts producing an effect or becomes noticeable.

B2 common mostly spoken

expression

Hear it in real life

Are you feeling more awake now?

Yes, the coffee is finally kicking in.

Play the conversation

The painkillers should kick in within half an hour.

The mistake everyone makes

Not: The coffee has not kicked ‸ yet.

Say: The coffee has not kicked in yet.

Use the particle "in" when something starts to have its effect.

Build it

How it fits in a sentence.

something kicks in; wait for something to kick in

Your turn: say it out loud

The painkillers should kick in within half an hour.

Say it out loud two or three times, until it feels like yours.

kick in

start having an effect

“The painkillers should kick in within half an hour.”

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