decouple

[diːˈkʌpəɫ]

/[diːˈkʌpəɫ]/ verb

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

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

The verdict

“decouple” is uncommon English (frequency #81,258 among 3,470 “D” headwords), classed as a verb. The kind of spelling people second-guess.

#81,258
frequency rank, English
3,470
“D” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To unlink; to take apart or come apart.

Corpus desk

Index EN-decouple · decouple · English

decouple · rank #81,258 · 0 variants · 0 confusables

  • FREQ-RARE #81,258
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH dek

Nearest frequency peer: dek (+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 “decouple”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for decouple
PropertyValue
Headworddecouple
LanguageEnglish
Part of speechVerb
IPA[diːˈkʌpəɫ]
Letters8
Frequency rank#81,258
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “decouple” 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).decouplefalls 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: “dek” (#81,259), “deltoid” (#81,260), “democratize” (#81,261). Among 3,470 “D” headwords, “decouple” is #81,258. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

decouple is uncommon English at frequency #81,258 among 3,470 “D” headwords, classed as averb, transcribed [diːˈkʌpəɫ]. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for decouple, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Middle French découpler. By surface analysis, de- + couple. The correct English form is decouple, spelled D-E-C-O-U-P-L-E.

Definition

  1. 1
    To unlink; to take apart or come apart.
  2. 2
    To muffle the seismic waves of (a nuclear explosion) by performing it underground.

Recorded use

Wiktionary examples

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

  1. radiation decoupled from matter
  2. to decouple a spent rocket stage

Etymology

From Middle French découpler. By surface analysis, de- + couple.

This word in other languages

desacoplar(Español)découpler(Français)entkoppeln(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 "decouple"?
"decouple" is spelled D-E-C-O-U-P-L-E. The IPA pronunciation is [diːˈkʌpəɫ].
What does "decouple" mean?
As a verb, "decouple" means: To unlink; to take apart or come apart.
How do you pronounce "decouple"?
The IPA (International Phonetic Alphabet) transcription for "decouple" is [diːˈkʌpəɫ]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "decouple"?
From Middle French découpler. By surface analysis, de- + couple. 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 "decouple", not the corpus desk frequency band.

Same letter count

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

databank#81,254Dashiell#81,253detoxify#81,265Dujardin#81,284

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

Source: FrequencyWords open word-frequency list