decompress

/diːkəmˈpɹɛs/

//diːkəmˈpɹɛs// verb

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

"decompress" is a 10-letter English headword indexed on PlainSpell.

The verdict

“decompress” is uncommon English (frequency #54,730 among 3,470 “D” headwords), classed as a verb. The kind of spelling people second-guess.

#54,730
frequency rank, English
3,470
“D” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To relieve the pressure or compression on something.

Corpus desk

Index EN-decompress · decompress · English

decompress · rank #54,730 · 0 variants · 0 confusables

  • FREQ-RARE #54,730
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH debugger

Nearest frequency peer: debugger (-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 “decompress”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for decompress
PropertyValue
Headworddecompress
LanguageEnglish
Part of speechVerb
IPA/diːkəmˈpɹɛs/
Letters10
Frequency rank#54,730
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “decompress” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).decompressfalls 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: “debugger” (#54,729), “Deering” (#54,731), “DeAngelo” (#54,728). Among 3,470 “D” headwords, “decompress” is #54,730. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

decompress is uncommon English at frequency #54,730 among 3,470 “D” headwords, classed as averb, transcribed /diːkəmˈpɹɛs/. Rarity is why readers land here mid-draft. 5 senses are on record.

No misspelling variants are generated for decompress in our index, which points to an orthography that plays by predictable English rules. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From de- + compress. The correct English form is decompress, spelled D-E-C-O-M-P-R-E-S-S.

Definition

  1. 1
    To relieve the pressure or compression on something.
  2. 2
    To bring someone (such as a diver) back to normal atmospheric pressure after being exposed to high pressure.
  3. 3
    To restore (compressed data) to its original form.
  4. 4
    To adjust to normal atmospheric pressure after being exposed to high pressure.
  5. 5
    To relax.

Recorded use

Wiktionary examples

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

  1. The bad news is we got eight hours in this can blowin' down… And the worse news is, it's gonna take us three weeks to decompress later.
  2. There was a typical reef construction here with large plating corals at deeper depths. Thankfully, again there were many new corals. We decompressed for several minutes before boarding. Then Mike really got sick. He skipped the next dive.

Etymology

From de- + compress.

Antonyms

compress

This word in other languages

décomprimer(Français)

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 "decompress"?
"decompress" is spelled D-E-C-O-M-P-R-E-S-S. The IPA pronunciation is /diːkəmˈpɹɛs/.
What does "decompress" mean?
As a verb, "decompress" means: To relieve the pressure or compression on something.
How do you pronounce "decompress"?
The IPA (International Phonetic Alphabet) transcription for "decompress" is /diːkəmˈpɹɛs/. 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 "decompress"?
From de- + compress. 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 "decompress", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

detestable#54,737cornflakes#54,710embryology#54,757comparably#54,702

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

Source: FrequencyWords open word-frequency list