tooth

/tuːθ/

//tuːθ// noun

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

The verdict

“tooth” is a regularly-used English word, ranked #6,305 in English word frequency and used as a noun.

#6,305
frequency rank, English
5
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for biting and chewing food.

Visual similarity to commonly confused words

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

tooth vs tot
60% similar
tooth vs tote
60% similar
tooth vs trot
60% similar

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

Key facts for tooth
PropertyValue
Headwordtooth
LanguageEnglish
Part of speechNoun
IPA/tuːθ/
Letters5
Frequency rank#6,305
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “tooth” 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). tooth 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 tooth is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /tuːθ/. Corpus data places it at rank #6,305 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 9 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 6 likely wrong-spelling variants for tooth, with forms such as "ototh", "tooht", and "toothh". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "tot", "tote", "trot", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle English tothe, toth, tooth, from Old English tōþ (“tooth”), from Proto-West Germanic *tanþ (“tooth”), from Proto-Germanic *tanþs (“tooth”), from Proto-Indo-European *h₃dónts (“tooth”). Related to tusk. Doublet of dent, dens, tind, and tine. Cogn… The correct English form is tooth, spelled T-O-O-T-H.

Definition

  1. 1
    A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for biting and chewing food.
  2. 2
    A sharp projection on the blade of a saw or similar implement.
  3. 3
    A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain.
  4. 4
    Of a rope, the stickiness when in contact with another rope as in a knot.
  5. 5
    A projection or point in other parts of the body resembling the tooth of a vertebrate animal.
  6. 6
    A pointed projection from the margin of a leaf.
  7. 7
    The rough surface of some kinds of cel or other films that allows better adhesion of artwork.
  8. 8
    Liking, fondness (compare toothsome).
  9. 9
    An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb.

Etymology

From Middle English tothe, toth, tooth, from Old English tōþ (“tooth”), from Proto-West Germanic *tanþ (“tooth”), from Proto-Germanic *tanþs (“tooth”), from Proto-Indo-European *h₃dónts (“tooth”). Related to tusk. Doublet of dent, dens, tind, and tine. Cognates Cognate with Scots tuith (“tooth”), North Frisian Ter, teän, tosch, toske, tuis, tus, tusch, täis (“tooth”), Saterland Frisian Tusk (“tooth”), West Frisian tosk (“tooth”), Bavarian Zåhn (“tooth”), Dutch tand (“tooth”), German Zahn (“tooth”), Limburgish tandj (“tooth”), Luxembourgish Zant (“tooth”), Vilamovian cōn (“tooth”), Yiddish צאָן (tson, “tooth”), Danish and Swedish tand (“tooth”), Faroese tonn (“tooth”), Icelandic tönn (“tooth”), Norn *tann, *tant (“tooth”), Norwegian Bokmål tann (“tooth”), Norwegian Nynorsk tann, tonn (“tooth”), Breton and Welsh dant (“tooth”), Cornish dans (“tooth”), Irish déad (“tooth”), Scottish Gaelic deud (“tooth”), Asturian, Leonese, Mirandese, and Spanish diente (“tooth”), Aragonese dien (“tooth”), Catalan and French dent (“tooth”), Galician, Italian, and Portuguese dente (“tooth”), Romanian dinte (“tooth”), Latin dēns (“tooth”), Ancient Greek ὀδούς (odoús), ὀδών (odṓn, “tooth”), Lithuanian dantis (“tooth”), Belarusian дзясна́ (dzjasná, “gum”), Bulgarian and Russian десна (desna, “gum”), Czech dáseň (“gum”), Polish dziąsło (“gum”), Serbo-Croatian dȇsni (“gum”), Slovak ďasno (“gum”), Slovene dlesni (“gum”), Ukrainian я́сна (jásna, “gum”), Armenian ատամ (atam, “tooth”), Ossetian дӕндаг (dændag, “tooth”), Baluchi دنتان (dantán), دتھاں (datʰāⁿ, “tooth”), Central Kurdish ددان (ddan, “tooth”), Northern Kurdish didan, diran (“tooth”), Persian دندان (dandân, “tooth”), Sanskrit दत् (dat), दन्त (danta, “tooth”).

Synonyms

fangtoothtoothypeg

This word in other languages

Common misspellings

Also misspelled as: ototh,tooht,toothh,tootth,totoh,ttooth

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of tooth - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ototh2tooht2toothh1tootth1totoh2ttooth1
Edit distance from "tooth"

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 "tooth"?
"tooth" is spelled T-O-O-T-H. The IPA pronunciation is /tuːθ/.
What does "tooth" mean?
As a noun, "tooth" means: A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for biting and chewing food.
What words are commonly confused with "tooth"?
"tooth" is commonly confused with "tot", "tote", "trot". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "tooth"?
The IPA (International Phonetic Alphabet) transcription for "tooth" is /tuːθ/. 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 "tooth"?
From Middle English tothe, toth, tooth, from Old English tōþ (“tooth”), from Proto-West Germanic *tanþ (“tooth”), from Proto-Germanic *tanþs (“tooth”), from Proto-Indo-European *h₃dónts (“tooth”). Related to tusk. Doublet of dent, dens, tind, and ... 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 “tooth”

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

  • The one correct English spelling is T-O-O-T-H - every other letter order is a misspelling in standard orthography.
  • Say it as /tuːθ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “tot” - see the side-by-side comparison. tooth vs tot
  • 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