six feet under

adj

"six-feet-under" is a 12-letter English headword indexed on PlainSpell.

The verdict

“six feet under” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Buried underground; not alive; dead.

Key facts for six feet under
PropertyValue
Headwordsix feet under
LanguageEnglish
Part of speechAdjective
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “six feet under” sits in English frequency

six feet under 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.

Spelling & Dictionary Insight

The English entry for six feet under is 14 letters long, classified as an adjective. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Buried underground; not alive; dead.".

Our edit-distance generator produced no likely misspellings for six feet under, and the word's spelling is regular enough that our generator found nothing worth flagging. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: Six feet refers to the traditional depth to which graves are dug. The correct English form is six feet under, spelled S-I-X- -F-E-E-T- -U-N-D-E-R.

Definition

  1. 1
    Buried underground; not alive; dead.

Etymology

Six feet refers to the traditional depth to which graves are dug.

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 "six feet under"?
"six feet under" is spelled S-I-X- -F-E-E-T- -U-N-D-E-R.
What does "six feet under" mean?
As an adjective, "six feet under" means: Buried underground; not alive; dead.
What is the origin of the word "six feet under"?
Six feet refers to the traditional depth to which graves are dug. 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 “six feet under”

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

  • The one correct English spelling is S-I-X- -F-E-E-T- -U-N-D-E-R - 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 FrequencyWords open word-frequency list