TMD

noun

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

"tmd" is a 3-letter English headword indexed on PlainSpell.

The verdict

“TMD” is uncommon English (frequency #73,725 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.

#73,725
frequency rank, English
3,151
“T” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of temporomandibular joint dysfunction.

Corpus desk

Index EN-tmd · TMD · English

TMD · rank #73,725 · 0 variants · 0 confusables

  • FREQ-RARE #73,725
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH tiptoes

Nearest frequency peer: tiptoes (-1 rank slots)

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.

Long-tail ranks near “TMD”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “TMD” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for TMD
PropertyValue
HeadwordTMD
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#73,725
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “TMD” sits in English frequency

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).TMDlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “tiptoes” (#73,724), “Torry” (#73,726), “toupee” (#73,729). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

TMD is uncommon English at frequency #73,725 among 3,151 “T” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.

The misspelling generator found no plausible variants for TMD, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: Abbreviation. The correct English form is TMD, spelled T-M-D.

Definition

  1. 1
    Initialism of temporomandibular joint dysfunction.
  2. 2
    Initialism of theat{er/re} missile defen{s/c}e.
  3. 3
    Initialism of traction maintenance depot.
  4. 4
    Initialism of tuned-mass damper.

Etymology

Abbreviation.

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 "TMD"?
"TMD" is spelled T-M-D.
What does "TMD" mean?
As a noun, "TMD" means: Initialism of temporomandibular joint dysfunction.
What is the origin of the word "TMD"?
Abbreviation. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "TMD", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

TDK#73,697VAD#73,764weh#73,794nug#73,487

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

Source: FrequencyWords open word-frequency list