thirties
"thirties" is a 8-letter English headword indexed on PlainSpell.
The verdict
“thirties” has 12 generated spelling variants in the English index at frequency #21,384. The variants make it a useful spelling check.
- #21,384
- frequency rank, English
- 27,828
- “T” headwords
- 12
- tracked misspellings
- 1
- confusable pair
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The fourth decade of a century: the 1830s, 1930s, 2030s, etc.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | thirties |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #21,384 |
| Misspellings tracked | 12 |
| Confusable pairs | 1 |
| Source | Wiktionary (kaikki.org) |
Where “thirties” sits in English frequency
A misspelling magnet
The generator records 12 spelling variants around thirties, anoun. Corpus frequency is #21,384 among 27,828 “T” headwords. Wiktionary lists 3 senses, so context still picks the gloss.
Our generated misspelling index lists 12 likely wrong-spelling variants for thirties, with forms such as "htirties", "thhirties", and "thirites". 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 1 confusable-pair relationship, "thirteen", where similar look or sound leads writers to substitute one word for another in context.
Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is thirties, spelled T-H-I-R-T-I-E-S.
Definition
- 1The fourth decade of a century: the 1830s, 1930s, 2030s, etc.
- 2The decade of one's life from age 30 through age 39.
- 3The range between 30 and 39.
This word in other languages
Common misspellings
Also misspelled as: htirties,thhirties,thirites,thirrties,thirteis,thirtiess,thirtise,thirtties,thitries,thrities,tihrties,tthirties
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of thirties - 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.
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 "thirties"?
What does "thirties" mean?
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Using “thirties”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-H-I-R-T-I-E-S - every other letter order is a misspelling in standard orthography.
- Don't mix it up with “thirteen” - see the side-by-side comparison. thirties vs thirteen
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
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.