separateness

noun

"separateness" is a 12-letter English headword indexed on PlainSpell.

The verdict

“separateness” is uncommon English (frequency #98,701 among 54,294 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#98,701
frequency rank, English
54,294
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The property of being separate.

Key facts for separateness
PropertyValue
Headwordseparateness
LanguageEnglish
Part of speechNoun
Letters12
Frequency rank#98,701
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “separateness” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). separateness lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

separateness is uncommon English at frequency #98,701 among 54,294 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The property of being separate.".

separateness has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From separate + -ness. The correct English form is separateness, spelled S-E-P-A-R-A-T-E-N-E-S-S.

Definition

  1. 1
    The property of being separate.

Etymology

From separate + -ness.

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 "separateness"?
"separateness" is spelled S-E-P-A-R-A-T-E-N-E-S-S.
What does "separateness" mean?
As a noun, "separateness" means: The property of being separate.
What is the origin of the word "separateness"?
From separate + -ness. 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.

Using “separateness”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is S-E-P-A-R-A-T-E-N-E-S-S - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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.

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

Source: FrequencyWords open word-frequency list