TD

noun

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

"td" is a 2-letter English headword indexed on PlainSpell.

The verdict

“TD” is a regularly-used English word, ranked #8,492 in English word frequency and used as a noun.

#8,492
frequency rank, English
2
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Abbreviation of touchdown.

Visual similarity to commonly confused words

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

TD vs to
0% similar
TD vs TV
50% similar
TD vs te
0% similar

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

Key facts for TD
PropertyValue
HeadwordTD
LanguageEnglish
Part of speechNoun
Letters2
Frequency rank#8,492
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “TD” 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). TD 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 TD is 2 letters long, classified as a noun. Corpus data places it at rank #8,492 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 11 distinct senses for this headword, so context determines which meaning a reader should apply.

TD doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "to", "TV", "te", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Wiktionary doesn't record an etymology for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is TD, spelled T-D.

Definition

  1. 1
    Abbreviation of touchdown.
  2. 2
    Initialism of tardive dyskinesia.
  3. 3
    Initialism of ticket designator.
  4. 4
    Initialism of tower defense.
  5. 5
    Initialism of thumb damp.
  6. 6
    Initialism of Teachta Dála, a member of Dáil Éireann, the lower chamber of the Parliament of the Republic of Ireland.
  7. 7
    Initialism of Territorial Decoration (previously awarded to officers who had more than 12 years commissioned service in the Territorial Army (UK)).
  8. 8
    Initialism of traveler's diarrhea.
  9. 9
    Initialism of temporal difference.
  10. 10
    Initialism of thought disorder.
  11. 11
    Initialism of technical director.

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 "TD"?
"TD" is spelled T-D.
What does "TD" mean?
As a noun, "TD" means: Abbreviation of touchdown.
What words are commonly confused with "TD"?
"TD" is commonly confused with "to", "TV", "te". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "TD" come from?
"TD" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 “TD”

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

  • The one correct English spelling is T-D - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “to” - see the side-by-side comparison. TD vs to
  • 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