laughing gas

noun

"laughing-gas" is a 11-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Nitrous oxide, especially when used as an anaesthetic.

Key facts for laughing gas
PropertyValue
Headwordlaughing gas
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “laughing gas” sits in English frequency

laughing gas falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

laughing gas is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Nitrous oxide, especially when used as an anaesthetic.".

Our edit-distance generator produced no likely misspellings for laughing gas, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From its euphoric effects. Coined by British chemist Humphry Davy in 1799. The correct English form is laughing gas, spelled L-A-U-G-H-I-N-G- -G-A-S.

Definition

  1. 1
    Nitrous oxide, especially when used as an anaesthetic.

Etymology

From its euphoric effects. Coined by British chemist Humphry Davy in 1799.

This word in other languages

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 "laughing gas"?
"laughing gas" is spelled L-A-U-G-H-I-N-G- -G-A-S.
What does "laughing gas" mean?
As a noun, "laughing gas" means: Nitrous oxide, especially when used as an anaesthetic.
What is the origin of the word "laughing gas"?
From its euphoric effects. Coined by British chemist Humphry Davy in 1799. See the full etymology section above for more details.
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.

Using “laughing gas”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is L-A-U-G-H-I-N-G- -G-A-S - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list