9th

adj

"9th" is a 2-letter English headword indexed on PlainSpell.

The verdict

“9th” is a regularly-used English word, ranked #5,652 in English word frequency and used as an adjective.

#5,652
frequency rank, English
3
letters

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

Key facts for 9th
PropertyValue
Headword9th
LanguageEnglish
Part of speechAdjective
Letters3
Frequency rank#5,652
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “9th” 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). 9th 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 9th is 3 letters long, classified as an adjective. Corpus data places it at rank #5,652 in overall English word frequency, indicating it appears regularly in written and spoken text. The dominant gloss from Wiktionary reads: "Abbreviation of ninth.".

We couldn't generate a plausible misspelling set for 9th, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.

This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is 9th, spelled 9-T-H.

Definition

  1. 1
    Abbreviation of ninth.

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); 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 "9th"?
"9th" is spelled 9-T-H.
What does "9th" mean?
As an adjective, "9th" means: Abbreviation of ninth.
What language does "9th" come from?
"9th" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “9th”

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

  • The one correct English spelling is 9-T-H - 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