penetrate

/ˈpɛnɪtɹeɪt/

//ˈpɛnɪtɹeɪt// verb

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

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

The verdict

“penetrate” has 13 generated spelling variants in the English index at frequency #13,977. The variants make it a useful spelling check.

#13,977
frequency rank, English
4,417
“P” headwords
13
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To enter into; to make way into the interior of; to pierce.

Corpus desk

Index EN-penetrate · penetrate · English

penetrate · rank #13,977 · 13 variants · 1 confusable

  • FREQ-MID #13,977
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 13 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH Palms

Nearest frequency peer: Palms (-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 “penetrate”

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

corpus weight

What this shows “penetrate” 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).

penetrate vs penetrated
90% similar

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

Key facts for penetrate
PropertyValue
Headwordpenetrate
LanguageEnglish
Part of speechVerb
IPA/ˈpɛnɪtɹeɪt/
Letters9
Frequency rank#13,977
Misspellings tracked13
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “penetrate”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).penetratelands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “Palms” (#13,976), “Phelps” (#13,978), “overcoming” (#13,975). Among 4,417 “P” headwords, “penetrate” is #13,977. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around penetrate (IPA /ˈpɛnɪtɹeɪt/), averb. Corpus frequency is #13,977 among 4,417 “P” headwords. Wiktionary lists 6 senses, so context still picks the gloss.

Our generated misspelling index lists 13 likely wrong-spelling variants for penetrate, with forms such as "epnetrate", "peentrate", and "penertate". 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 1 confusable-pair relationship, "penetrated", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Latin penētrātus, perfect passive participle of penētrō (“to put, set, or place within, enter, pierce, penetrate”) (see -ate (verb-forming suffix)), from penes (“within, with”) by analogy to intrō (“to go in, enter”). Compare French pénétrer. The correct English form is penetrate, spelled P-E-N-E-T-R-A-T-E.

Definition

  1. 1
    To enter into; to make way into the interior of; to pierce.
  2. 2
    To achieve understanding of, despite some obstacle; to comprehend; to understand.
  3. 3
    To affect profoundly through the senses or feelings; to move deeply.
  4. 4
    To infiltrate an enemy to gather intelligence.
  5. 5
    To insert the penis into an orifice, such as a vagina, mouth, or anus.
  6. 6
    To move a piece past the defending pieces of one's opponent.

Recorded use

Wiktionary examples

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

  1. Light penetrates darkness.
  2. He takes the prepared charcoal used by artists, brings it to a white heat, and suddenly plunges it in a bath of mercury, of which the globules instantly penetrate the pores of charcoal, and may be said to metallize it.

Etymology

From Latin penētrātus, perfect passive participle of penētrō (“to put, set, or place within, enter, pierce, penetrate”) (see -ate (verb-forming suffix)), from penes (“within, with”) by analogy to intrō (“to go in, enter”). Compare French pénétrer.

This word in other languages

penetrar(Español)pénétrer(Français)eindringen(Deutsch)penetrar(Português)

Common misspellings

Also misspelled as:

  • epnetrate
  • peentrate
  • penertate
  • penetarte
  • penetraet
  • penetratte
  • penetrrate
  • penetrtae
  • penettrate
  • pennetrate
  • penterate
  • pneetrate
  • ppenetrate

Misspelling Pattern Breakdown

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

epnetrate2peentrate2penertate2penetarte2penetraet2penetratte1penetrrate1penetrtae2
Edit distance from "penetrate"

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 "penetrate"?
"penetrate" is spelled P-E-N-E-T-R-A-T-E. The IPA pronunciation is /ˈpɛnɪtɹeɪt/.
What does "penetrate" mean?
As a verb, "penetrate" means: To enter into; to make way into the interior of; to pierce.
What words are commonly confused with "penetrate"?
"penetrate" is commonly confused with "penetrated". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "penetrate"?
The IPA (International Phonetic Alphabet) transcription for "penetrate" is /ˈpɛnɪtɹeɪt/. 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 "penetrate"?
From Latin penētrātus, perfect passive participle of penētrō (“to put, set, or place within, enter, pierce, penetrate”) (see -ate (verb-forming suffix)), from penes (“within, with”) by analogy to intrō (“to go in, enter”). Compare French pénétrer. 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 "penetrate", not the corpus desk frequency band.

Same letter count

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

plaintiff#13,982portrayal#13,987luxurious#13,952repairing#14,002

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

mystical13 variantsmeltdown13 variantsreplicate13 variantssafeguard13 variants

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

Source: FrequencyWords open word-frequency list