let in

verb

By · According to Wiktionary data (CC BY-SA) ·

"let-in" is a 5-letter English headword indexed on PlainSpell.

The verdict

“let in” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To let someone or something come in; to admit someone or something in.

Corpus desk

Index EN-let-in · let in · English

let in · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "L" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for let in
PropertyValue
Headwordlet in
LanguageEnglish
Part of speechVerb
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “let in” in English

let inranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

let in is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 4 senses are on record.

Our edit-distance generator produced no likely misspellings for let in, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is let in, spelled L-E-T- -I-N.

Definition

  1. 1
    To let someone or something come in; to admit someone or something in.
  2. 2
    To let someone or something come in; to admit someone or something in.
  3. 3
    To associate with.
  4. 4
    To cheat or victimize.

Recorded use

Wiktionary examples

These source excerpts show how let in appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. He opened the window to let in the air.
  2. So tell me when you're gonna let me in / I'm getting tired and I need somewhere to begin

This word in other languages

abrir(Español)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "let in"?
"let in" is spelled L-E-T- -I-N.
What does "let in" mean?
As a verb, "let in" means: To let someone or something come in; to admit someone or something in.
What language does "let in" come from?
"let in" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list