obfuscate

/ˈɒbfəskeɪt/

//ˈɒbfəskeɪt// verb

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

The verdict

“obfuscate” is uncommon English (frequency #68,493 among 1,431 “O” headwords), classed as a verb. The kind of spelling people second-guess.

#68,493
frequency rank, English
1,431
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed September 2, 2026) - To make dark; to overshadow.

Corpus desk

Index EN-obfuscate · obfuscate · English

obfuscate · rank #68,493 · 0 variants · 0 confusables

  • FREQ-RARE #68,493
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH nyan

Nearest frequency peer: nyan (-3 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.

Frequency neighbourhood for “obfuscate”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “obfuscate” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 2, 2026
Key facts for obfuscate
PropertyValue
Headwordobfuscate
LanguageEnglish
Part of speechVerb
IPA/ˈɒbfəskeɪt/
Letters9
Frequency rank#68,493
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “obfuscate” 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). obfuscate 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

obfuscate is uncommon English at frequency #68,493 among 1,431 “O” headwords, classed as averb, transcribed /ˈɒbfəskeɪt/. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for obfuscate in our index, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: The adjective is first attested in 1487, in Middle English, the verb in 1536; either borrowed from Middle French obfusquer, offusquer, from Old French offusquer, or directly from Late Latin obfuscātus, offuscātus, the perfect passive participle of obfuscō, … The correct English form is obfuscate, spelled O-B-F-U-S-C-A-T-E.

Definition

  1. 1
    To make dark; to overshadow.
  2. 2
    To deliberately make more confusing in order to conceal the truth.
  3. 3
    To alter code while preserving its behavior but concealing its structure and intent.

Recorded use

Wiktionary examples

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

  1. obfuscate facts
  2. Can weakness be really obfuscated?

Etymology

The adjective is first attested in 1487, in Middle English, the verb in 1536; either borrowed from Middle French obfusquer, offusquer, from Old French offusquer, or directly from Late Latin obfuscātus, offuscātus, the perfect passive participle of obfuscō, offuscō (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from Latin ob- + fuscō (“to darken”). Doublet of dusken (“to darken, make obscure”).

Synonyms

Antonyms

This word in other languages

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.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "obfuscate"?
"obfuscate" is spelled O-B-F-U-S-C-A-T-E. The IPA pronunciation is /ˈɒbfəskeɪt/.
What does "obfuscate" mean?
As a verb, "obfuscate" means: To make dark; to overshadow.
How do you pronounce "obfuscate"?
The IPA (International Phonetic Alphabet) transcription for "obfuscate" is /ˈɒbfəskeɪt/. 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 "obfuscate"?
The adjective is first attested in 1487, in Middle English, the verb in 1536; either borrowed from Middle French obfusquer, offusquer, from Old French offusquer, or directly from Late Latin obfuscātus, offuscātus, the perfect passive participle of... 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 "obfuscate", not the corpus desk frequency band.

Same letter count

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