Word.ws English Dictionary

let in

let in verb: to let someone or something come in; to admit someone or something in.

Verb

let in (third-person singular simple present lets in, present participle letting in, simple past and past participle let in)

  1. (transitive) To let someone or something come in; to admit someone or something in.
    • He opened the window to let in the air.
    Antonyms:
    keep out, lock out
    1. (transitive) To divulge one's inner thoughts to (someone), making oneself emotionally vulnerable to them; to open up to (someone).
      • So tell me when you're gonna let me in / I'm getting tired and I need somewhere to begin2004, “Somewhere Only We Know”, in Hopes and Fears, performed by Keane
  2. (transitive, Oxford University slang) To associate with.
    • He has also been good enough to recommend to me many tradesmen who are ready to supply these articles in any quantities; each of whom has been here already a dozen times, cap in hand, and vowing that it is quite immaterial when I pay—which is very kind of them; but, with the highest respect for...1859, Thomas Hughes, chapter 1, in Tom Brown at Oxford
  3. (UK, obsolete, slang) To cheat or victimize.
    • He let me in heavily.

Antonyms of let in

Forms of let in

third-person singular presentlets in
present participleletting in
past participlelet in
pastlet in

Questions about let in

What does let in mean?
Let in means to let someone or something come in; to admit someone or something in.
What part of speech is let in?
Let in is a verb.
What is the past tense of let in?
The past tense of let in is let in.

Words near let in in the dictionary

  1. let go by the run
  2. let he who is without sin cast the first stone
  3. let her rip
  4. let him that is without sin cast the first stone
  5. let him who is without sin cast the first stone
  6. let in
  7. let in on
  8. let into
  9. let it all hang out
  10. let it alone
  11. let it be

Source and license

Adapted from Wiktionary: let in (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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