compression

/kəmˈpɹɛʃ.ən/

//kəmˈpɹɛʃ.ən// noun

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

"compression" is a 11-letter English headword indexed on PlainSpell.

The verdict

“compression” is a regularly-used English word, ranked #9,304 in English word frequency and used as a noun.

#9,304
frequency rank, English
11
letters
16
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An increase in density; the act of compressing, or the state of being compressed; compaction.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

compression vs compressor
82% similar
compression vs compressive
82% similar
compression vs compassion
82% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for compression
PropertyValue
Headwordcompression
LanguageEnglish
Part of speechNoun
IPA/kəmˈpɹɛʃ.ən/
Letters11
Frequency rank#9,304
Misspellings tracked16
Confusable pairs4
SourceWiktionary (kaikki.org)

Where “compression” 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). compression lands here:

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

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

Spelling & Dictionary Insight

The English entry for compression is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /kəmˈpɹɛʃ.ən/. Corpus data places it at rank #9,304 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 16 likely wrong-spelling variants for compression, with forms such as "ccompression", "cmopression", and "commpression". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 4 confusable-pair relationships, "compressor", "compressive", "compassion", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Borrowed from Middle French compression, from Latin compressiō. The correct English form is compression, spelled C-O-M-P-R-E-S-S-I-O-N.

Definition

  1. 1
    An increase in density; the act of compressing, or the state of being compressed; compaction.
  2. 2
    The cycle of an internal combustion engine during which the fuel and air mixture is compressed.
  3. 3
    The process by which data is compressed.
  4. 4
    The electronic process by which any sound's gain is automatically controlled.
  5. 5
    The deviation of a heavenly body from a spherical form.

Etymology

Borrowed from Middle French compression, from Latin compressiō.

Antonyms

decompressionrarefaction

This word in other languages

compression(Français)Kompression(Deutsch)compressão(Português)

Common misspellings

Also misspelled as: ccompression,cmopression,commpression,comperssion,comppression,compresion,compresison,compressino,compressionn,compressoin,comprestion,comprression,comprsesion,comrpession,copmression,ocmpression

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of compression - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ccompression1cmopression2commpression1comperssion2comppression1compresion1compresison2compressino2
Edit distance from "compression"

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 "compression"?
"compression" is spelled C-O-M-P-R-E-S-S-I-O-N. The IPA pronunciation is /kəmˈpɹɛʃ.ən/.
What does "compression" mean?
As a noun, "compression" means: An increase in density; the act of compressing, or the state of being compressed; compaction.
What words are commonly confused with "compression"?
"compression" is commonly confused with "compressor", "compressive", "compassion". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "compression"?
The IPA (International Phonetic Alphabet) transcription for "compression" is /kəmˈpɹɛʃ.ən/. 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 "compression"?
Borrowed from Middle French compression, from Latin compressiō. 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 “compression”

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

  • The one correct English spelling is C-O-M-P-R-E-S-S-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /kəmˈpɹɛʃ.ən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “compressor” - see the side-by-side comparison. compression vs compressor
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list