virulent

/ˈvɪɹ(j)ʊl(ə)nt/

//ˈvɪɹ(j)ʊl(ə)nt// adj

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

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

The verdict

“virulent” has 12 generated spelling variants in the English index at frequency #33,904. The variants make it a useful spelling check.

#33,904
frequency rank, English
969
“V” headwords
12
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of animals, plants, or substances: extremely venomous or poisonous.

Corpus desk

Index EN-virulent · virulent · English

virulent · rank #33,904 · 12 variants · 2 confusables

  • FREQ-MID #33,904
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 12 variants
  • BOOK-MID 969
  • PHOTO-FINISH Veda

Nearest frequency peer: Veda (-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.

Rank peers near misspelling magnet “virulent”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “virulent” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

virulent vs violent
75% similar
virulent vs virulence
78% similar

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

Key facts for virulent
PropertyValue
Headwordvirulent
LanguageEnglish
Part of speechAdjective
IPA/ˈvɪɹ(j)ʊl(ə)nt/
Letters8
Frequency rank#33,904
Misspellings tracked12
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “virulent”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).virulentlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “Veda” (#33,903), “waterfowl” (#33,906), “uptight” (#33,901). Among 969 “V” headwords, “virulent” is #33,904. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around virulent (IPA /ˈvɪɹ(j)ʊl(ə)nt/), anadjective. Corpus frequency is #33,904 among 969 “V” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for virulent, with forms such as "ivrulent", "virluent", and "virrulent". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "violent", "virulence", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: PIE word *wisós From Middle English virulent (“leaking or seeping pus, purulent; (of putrefaction) extremely severe (sense uncertain)”) [and other forms], borrowed from Latin vīrulentus (“poisonous”), from vīrus (“poison; venom; slime, slimy liquid; stinki… The correct English form is virulent, spelled V-I-R-U-L-E-N-T.

Definition

  1. 1
    Of animals, plants, or substances: extremely venomous or poisonous.
  2. 2
    Extremely hostile or malicious; intensely acrimonious.
  3. 3
    Of a disease or disease-causing agent: malignant, able to cause damage to the host.
  4. 4
    Of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis.

Recorded use

Wiktionary examples

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

  1. The politicians were virulent in their hatred of the president.
  2. More venemous and much more virulent / Then any poyſoned tode, or any ſerpent.

Etymology

PIE word *wisós From Middle English virulent (“leaking or seeping pus, purulent; (of putrefaction) extremely severe (sense uncertain)”) [and other forms], borrowed from Latin vīrulentus (“poisonous”), from vīrus (“poison; venom; slime, slimy liquid; stinking smell; nasty taste”) (ultimately from Proto-Indo-European *wisós (“poison; slime; fluidity”)) + -ulentus (suffix meaning ‘abounding in, full of’, forming adjectives). Sense 4 (“of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis”) is derived from French virulent, which was first used in this sense by the French biologist François Jacob (1920–2013) and his co-authors in a 1953 article.

This word in other languages

virulent(Français)virulent(Deutsch)

Common misspellings

Also misspelled as:

  • ivrulent
  • virluent
  • virrulent
  • viruelnt
  • virulennt
  • virulentt
  • viruletn
  • virullent
  • virulnet
  • viurlent
  • vriulent
  • vvirulent

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of virulent - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ivrulent2virluent2virrulent1viruelnt2virulennt1virulentt1viruletn2virullent1
Edit distance from "virulent"

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 "virulent"?
"virulent" is spelled V-I-R-U-L-E-N-T. The IPA pronunciation is /ˈvɪɹ(j)ʊl(ə)nt/.
What does "virulent" mean?
As an adjective, "virulent" means: Of animals, plants, or substances: extremely venomous or poisonous.
What words are commonly confused with "virulent"?
"virulent" is commonly confused with "violent", "virulence". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "virulent"?
The IPA (International Phonetic Alphabet) transcription for "virulent" is /ˈvɪɹ(j)ʊl(ə)nt/. 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 "virulent"?
PIE word *wisós From Middle English virulent (“leaking or seeping pus, purulent; (of putrefaction) extremely severe (sense uncertain)”) [and other forms], borrowed from Latin vīrulentus (“poisonous”), from vīrus (“poison; venom; slime, slimy liqu... 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 "virulent", not the corpus desk frequency band.

Same letter count

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

acronyms#33,925Adderall#33,926alluvial#33,930Amarillo#33,931

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

battering12 variantsBelgians12 variantsBouchard12 variantsBurnside12 variants

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

Source: FrequencyWords open word-frequency list