contaminate

/kənˈtæmɪneɪt/

//kənˈtæmɪneɪt// verb

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

The verdict

“contaminate” is a moderately-common English word, ranked #35,662 in English word frequency and used as a verb.

#35,662
frequency rank, English
11
letters
16
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To make something dangerous or toxic by introducing impurities or foreign matter.

Visual similarity to commonly confused words

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

contaminate vs contaminated
92% similar
contaminate vs contaminant
82% similar

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

Key facts for contaminate
PropertyValue
Headwordcontaminate
LanguageEnglish
Part of speechVerb
IPA/kənˈtæmɪneɪt/
Letters11
Frequency rank#35,662
Misspellings tracked16
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “contaminate” 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). contaminate 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 contaminate is 11 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /kənˈtæmɪneɪt/. Corpus data places it at rank #35,662 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 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 contaminate, with forms such as "ccontaminate", "cnotaminate", and "conatminate". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 2 confusable-pair relationships, "contaminated", "contaminant", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: First attested in the early 15ᵗʰ century, in Middle English; from Middle English contaminaten (“to defile; to infect with desease”), from contaminat(e) (“sullied, defiled; infected with desease”, also used as the past participle of contaminaten) + -en (verb… The correct English form is contaminate, spelled C-O-N-T-A-M-I-N-A-T-E.

Definition

  1. 1
    To make something dangerous or toxic by introducing impurities or foreign matter.
  2. 2
    To soil, stain, corrupt, or infect by contact or association.
  3. 3
    To make unfit for use by the introduction of unwholesome or undesirable elements.
  4. 4
    To infect, usually of a deadly virus.

Etymology

First attested in the early 15ᵗʰ century, in Middle English; from Middle English contaminaten (“to defile; to infect with desease”), from contaminat(e) (“sullied, defiled; infected with desease”, also used as the past participle of contaminaten) + -en (verb-forming suffix), from Latin contāminātus, the perfect passive participle of contāminō (“to touch together, blend, mingle, corrupt, defile”) (see -ate (verb-forming suffix)), which see for further informations. More at taste, tax, and taxi.

This word in other languages

Common misspellings

Also misspelled as: ccontaminate,cnotaminate,conatminate,conntaminate,contaimnate,contamiante,contaminaet,contaminatte,contaminnate,contamintae,contamminate,contamniate,contmainate,conttaminate,cotnaminate,ocntaminate

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of contaminate - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ccontaminate1cnotaminate2conatminate2conntaminate1contaimnate2contamiante2contaminaet2contaminatte1
Edit distance from "contaminate"

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 "contaminate"?
"contaminate" is spelled C-O-N-T-A-M-I-N-A-T-E. The IPA pronunciation is /kənˈtæmɪneɪt/.
What does "contaminate" mean?
As a verb, "contaminate" means: To make something dangerous or toxic by introducing impurities or foreign matter.
What words are commonly confused with "contaminate"?
"contaminate" is commonly confused with "contaminated", "contaminant". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "contaminate"?
The IPA (International Phonetic Alphabet) transcription for "contaminate" is /kənˈtæmɪneɪt/. 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 "contaminate"?
First attested in the early 15ᵗʰ century, in Middle English; from Middle English contaminaten (“to defile; to infect with desease”), from contaminat(e) (“sullied, defiled; infected with desease”, also used as the past participle of contaminaten) +... 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 “contaminate”

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

  • The one correct English spelling is C-O-N-T-A-M-I-N-A-T-E - every other letter order is a misspelling in standard orthography.
  • Say it as /kənˈtæmɪneɪt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “contaminated” - see the side-by-side comparison. contaminate vs contaminated
  • 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