tunnel

/ˈtʌn(ə)l/

//ˈtʌn(ə)l// noun

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

"tunnel" is a 6-letter English headword indexed on PlainSpell.

The verdict

“tunnel” is a regularly-used English word, ranked #4,809 in English word frequency and used as a noun.

#4,809
frequency rank, English
6
letters
7
tracked misspellings
12
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An underground or underwater passage.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

tunnel vs turned
67% similar
tunnel vs turner
67% similar
tunnel vs tune
67% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for tunnel
PropertyValue
Headwordtunnel
LanguageEnglish
Part of speechNoun
IPA/ˈtʌn(ə)l/
Letters6
Frequency rank#4,809
Misspellings tracked7
Confusable pairs12
SourceWiktionary (kaikki.org)

Where “tunnel” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). tunnel lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for tunnel is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈtʌn(ə)l/. Corpus data places it at rank #4,809 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 7 likely wrong-spelling variants for tunnel, with forms such as "tnunel", "ttunnel", and "tunel". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 12 confusable-pair relationships, "turned", "turner", "tune", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle French tonnelle (“net”) or tonel (“cask”), diminutive of Old French tonne (“cask”), a word of uncertain origin and affiliation. Related to Old English tunne (“tun; cask; barrel”). More at tun. The correct English form is tunnel, spelled T-U-N-N-E-L.

Definition

  1. 1
    An underground or underwater passage.
  2. 2
    A passage through or under some obstacle.
  3. 3
    A hole in the ground made by an animal, a burrow.
  4. 4
    A wrapper for a protocol that cannot otherwise be used because it is unsupported, blocked, or insecure.
  5. 5
    A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a funnel.
  6. 6
    The opening of a chimney for the passage of smoke; a flue.
  7. 7
    A level passage driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.
  8. 8
    Anything that resembles a tunnel.

Etymology

From Middle French tonnelle (“net”) or tonel (“cask”), diminutive of Old French tonne (“cask”), a word of uncertain origin and affiliation. Related to Old English tunne (“tun; cask; barrel”). More at tun.

This word in other languages

túnel(Español)tunnel(Français)Tunnel(Deutsch)túnel(Português)

Common misspellings

Also misspelled as: tnunel,ttunnel,tunel,tunenl,tunnell,tunnle,utnnel

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of tunnel - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

tnunel2ttunnel1tunel1tunenl2tunnell1tunnle2utnnel2
Edit distance from "tunnel"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "tunnel"?
"tunnel" is spelled T-U-N-N-E-L. The IPA pronunciation is /ˈtʌn(ə)l/.
What does "tunnel" mean?
As a noun, "tunnel" means: An underground or underwater passage.
What words are commonly confused with "tunnel"?
"tunnel" is commonly confused with "turned", "turner", "tune". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "tunnel"?
The IPA (International Phonetic Alphabet) transcription for "tunnel" is /ˈtʌn(ə)l/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "tunnel"?
From Middle French tonnelle (“net”) or tonel (“cask”), diminutive of Old French tonne (“cask”), a word of uncertain origin and affiliation. Related to Old English tunne (“tun; cask; barrel”). More at tun. 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 “tunnel”

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

  • The one correct English spelling is T-U-N-N-E-L - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈtʌn(ə)l/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “turned” - see the side-by-side comparison. tunnel vs turned
  • 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