out like a light

adj

"out-like-a-light" is a 13-letter English headword indexed on PlainSpell.

The verdict

“out like a light” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
16
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Asleep or unconscious, particularly if this has occurred suddenly and the sleep is deep.

Corpus desk

Index EN-out-like-a-light · out like a light · English

out like a light · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 16 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" 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 out like a light
PropertyValue
Headwordout like a light
LanguageEnglish
Part of speechAdjective
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “out like a light” in English

out like a lightranks 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

out like a light is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Asleep or unconscious, particularly if this has occurred suddenly and the sleep is deep.".

out like a light doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is out like a light, spelled O-U-T- -L-I-K-E- -A- -L-I-G-H-T.

Definition

  1. 1
    Asleep or unconscious, particularly if this has occurred suddenly and the sleep is deep.

Recorded use

Wiktionary example

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

  1. Once she received anesthesia, she was out like a light.

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 "out like a light"?
"out like a light" is spelled O-U-T- -L-I-K-E- -A- -L-I-G-H-T.
What does "out like a light" mean?
As an adjective, "out like a light" means: Asleep or unconscious, particularly if this has occurred suddenly and the sleep is deep.
What language does "out like a light" come from?
"out like a light" 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