30th
/ˈθɜː.ti.əθ/
"30th" is a 2-letter English headword indexed on PlainSpell.
The verdict
“30th” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 4
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Abbreviation of thirtieth.
| Property | Value |
|---|---|
| Headword | 30th |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈθɜː.ti.əθ/ |
| Letters | 4 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “30th” sits in English frequency
Rare enough to double-check
30th is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˈθɜː.ti.əθ/. Rarity is why readers land here mid-draft. Gloss: "Abbreviation of thirtieth.".
Our edit-distance generator produced no likely misspellings for 30th, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is 30th, spelled 3-0-T-H.
Definition
- 1Abbreviation of thirtieth.
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “30th”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is 3-0-T-H - every other letter order is a misspelling in standard orthography.
- Say it as /ˈθɜː.ti.əθ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.