subregion

noun

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

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

The verdict

“subregion” is uncommon English (frequency #69,475 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#69,475
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A region that is part of a larger region.

Corpus desk

Index EN-subregion · subregion · English

subregion · rank #69,475 · 0 variants · 0 confusables

  • FREQ-RARE #69,475
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH suborbital

Nearest frequency peer: suborbital (-1 rank slots)

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.

Long-tail ranks near “subregion”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “subregion” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for subregion
PropertyValue
Headwordsubregion
LanguageEnglish
Part of speechNoun
Letters9
Frequency rank#69,475
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “subregion” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).subregionfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “suborbital” (#69,474), “subservience” (#69,476), “subdivide” (#69,473). Among 6,566 “S” headwords, “subregion” is #69,475. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

subregion is uncommon English at frequency #69,475 among 6,566 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A region that is part of a larger region.".

We couldn't generate a plausible misspelling set for subregion, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From sub- + region. The correct English form is subregion, spelled S-U-B-R-E-G-I-O-N.

Definition

  1. 1
    A region that is part of a larger region.

Etymology

From sub- + region.

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 "subregion"?
"subregion" is spelled S-U-B-R-E-G-I-O-N.
What does "subregion" mean?
As a noun, "subregion" means: A region that is part of a larger region.
What is the origin of the word "subregion"?
From sub- + region. See the full etymology section above for more details.
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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "subregion", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

subdivide#69,473Smalltalk#69,449sleepwear#69,448shithouse#69,442

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

Source: FrequencyWords open word-frequency list