AAAmerican Accent US

let in

Separable

The object can go before or after the particle — but a pronoun MUST go in the middle: “clean it up”, never “clean up it”.

How to say it

Stress the particle, not the verb: let IN. Saying “LET in” is the clearest learner tell — the verb stays light and the particle carries the beat.

The /t/ flaps. Between vowels, American /t/ and /d/ both become a quick tap, so “let in” comes out as “le-din” — closer to a fast D than a T. Drop a pronoun in the middle and it flaps twice: “let it in” → “le-di-din”.

What it means

  1. To allow someone or something to enter.

    • “Could you let the cat in?”
    • “The blinds let in just enough light.”

    Similar: admit

The particle logic

in

Something moves into a space, a group, or a person's hands.

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More LET phrasal verbs

Compare the whole family →

let down

To disappoint someone who was relying on you.

let out

To allow someone or something to leave.

let off

To excuse someone from punishment.

let go of

To release your grip, literally or emotionally.

let in — meaning, examples & how to say it