30s

noun

"30s" is a 1-letter English headword indexed on PlainSpell.

The verdict

“30s” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
3
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The decade of the 1930s.

Corpus desk

Index EN-30s · 30s · English

30s · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "3" thin
  • PHOTO-UNK Peer pending

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.

Key facts for 30s
PropertyValue
Headword30s
LanguageEnglish
Part of speechNoun
Letters3
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “30s” in English

30sranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

30s is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for 30s in our index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Wiktionary doesn't record an etymology for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is 30s, spelled 3-0-S.

Definition

  1. 1
    The decade of the 1930s.
  2. 2
    A range of the numbers thirty (30) to thirty-nine (39).

Recorded use

Wiktionary examples

These source excerpts show how 30s appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. He's in his 30s.
  2. Casualties numbered in the 30s.

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

How do you spell "30s"?
"30s" is spelled 3-0-S.
What does "30s" mean?
As a noun, "30s" means: The decade of the 1930s.
What language does "30s" come from?
"30s" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

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

Source: FrequencyWords open word-frequency list