separable

adj

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

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

The verdict

“separable” is uncommon English (frequency #52,624 among 6,566 “S” headwords), classed as an adjective. The kind of spelling people second-guess.

#52,624
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Able to be separated.

Corpus desk

Index EN-separable · separable · English

separable · rank #52,624 · 0 variants · 0 confusables

  • FREQ-RARE #52,624
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH senescence

Nearest frequency peer: senescence (-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 “separable”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for separable
PropertyValue
Headwordseparable
LanguageEnglish
Part of speechAdjective
Letters9
Frequency rank#52,624
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “separable” in English

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

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “senescence” (#52,623), “sheared” (#52,625), “Selene” (#52,622). Among 6,566 “S” headwords, “separable” is #52,624. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

separable is uncommon English at frequency #52,624 among 6,566 “S” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 7 senses are on record.

Our edit-distance generator produced no likely misspellings for separable, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Middle English separable, from Middle French separable and its etymon Latin sēparābilis. The correct English form is separable, spelled S-E-P-A-R-A-B-L-E.

Definition

  1. 1
    Able to be separated.
  2. 2
    Able to be brought to a form where all occurrences of the dependent and the independent variable are on opposite sides of the equal sign.
  3. 3
    Having a countable dense subset.
  4. 4
    Any of several technical senses relating to the behavior of polynomials or objects over which polynomials can be defined:
  5. 5
    Any of several technical senses relating to the behavior of polynomials or objects over which polynomials can be defined:
  6. 6
    Any of several technical senses relating to the behavior of polynomials or objects over which polynomials can be defined:
  7. 7
    Any of several technical senses relating to the behavior of polynomials or objects over which polynomials can be defined:

Recorded use

Wiktionary example

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

  1. x²#43;1 is separable, since its roots are i and -i.

Etymology

From Middle English separable, from Middle French separable and its etymon Latin sēparābilis.

Synonyms

disunitableseparatable

Antonyms

annexablecombinableinseparable

This word in other languages

séparable(Français)trennbar(Deutsch)

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 "separable"?
"separable" is spelled S-E-P-A-R-A-B-L-E.
What does "separable" mean?
As an adjective, "separable" means: Able to be separated.
What is the origin of the word "separable"?
From Middle English separable, from Middle French separable and its etymon Latin sēparābilis. 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 "separable", not the corpus desk frequency band.

Same letter count

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

shortwave#52,627shrubbery#52,628spillover#52,640Reticulum#52,597

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

Source: FrequencyWords open word-frequency list