let in

verb

To let someone or something come in; to admit someone or something in.

“He let me in heavily.”

Meanings

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

present singular third person lets in · participle present letting in

  1. transitiveTo 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. transitiveTo 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 begin

      2004, “Somewhere Only We Know”, in Hopes and Fears, performed by Keane

      Antonyms: keep out, lock out

  2. transitiveOxford University slangTo associate with.
    1 more example

    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 friend Perkins (my scout) and his obliging friends, I shall make some enquiries before "letting in" with any of them.

    1859, Thomas Hughes, chapter 1, in Tom Brown at Oxford
  3. UKobsoleteslangTo cheat or victimize.

    He let me in heavily.

Synonyms & antonyms

verbTo let someone or something come in; to admit someone or something in.

verbTo divulge one's inner thoughts to (someone), making oneself emotionally vulnerable to them; to open up to (someone).

More synonyms by meaning

verballow participation in or the right to be part of; permit to exercise the rights, functions, and responsibilities of

verballow to enter; grant entry to

Similar

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Bulgarian въвеждам, пускам да влезе
  • въвеждам (văveždam)to let someone or something come in
  • пускам да влезе (puskam da vleze)to let someone or something come in
Catalan deixar entrar
  • deixar entrarto let someone or something come in
Dutch binnenlaten
  • binnenlatento let someone or something come in
Esperanto enlasi
  • enlasito let someone or something come in
Latin admittō, intrōmittō
  • admittōto let someone or something come in
  • intrōmittōto let someone or something come in
Lithuanian įleisti
  • įleistito let someone or something come in
Polish wpuszczać, wpuścić
  • wpuszczaćto let someone or something come in
  • wpuścićto let someone or something come in
Russian впустить
  • впустить (vpustitʹ)to let someone or something come in
Spanish dejar entrar, abrir
  • dejar entrarto let someone or something come in
  • abrirto let someone or something come in
Swedish släppa in
  • släppa into let someone or something come in
Cite this entry
APA

let in. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/let%20in

MLA

“let in.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/let%20in. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “let in,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/let%20in.

Source: let in on Wiktionary, CC BY-SA 4.0.