suborder

noun

"suborder" is a 8-letter English headword indexed on PlainSpell.

The verdict

“suborder” is uncommon English (frequency #89,953 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#89,953
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A taxonomic category below order and above infraorder.

Corpus desk

Index EN-suborder · suborder · English

suborder · rank #89,953 · 0 variants · 0 confusables

  • FREQ-RARE #89,953
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH subcortical

Nearest frequency peer: subcortical (-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 “suborder”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for suborder
PropertyValue
Headwordsuborder
LanguageEnglish
Part of speechNoun
Letters8
Frequency rank#89,953
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “suborder” 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).suborderfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “subcortical” (#89,952), “stripling” (#89,950), “sucralose” (#89,957). Among 6,566 “S” headwords, “suborder” is #89,953. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

suborder is uncommon English at frequency #89,953 among 6,566 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for suborder, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From sub- + order. The correct English form is suborder, spelled S-U-B-O-R-D-E-R.

Definition

  1. 1
    A taxonomic category below order and above infraorder.
  2. 2
    A secondary or subsidiary order (purchase request).
  3. 3
    Synonym of subordering.

Etymology

From sub- + order.

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 "suborder"?
"suborder" is spelled S-U-B-O-R-D-E-R.
What does "suborder" mean?
As a noun, "suborder" means: A taxonomic category below order and above infraorder.
What is the origin of the word "suborder"?
From sub- + order. 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 "suborder", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list