penetrator

noun

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

"penetrator" is a 10-letter English headword indexed on PlainSpell.

The verdict

“penetrator” is uncommon English (frequency #92,990 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#92,990
frequency rank, English
4,417
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Something that penetrates.

Corpus desk

Index EN-penetrator · penetrator · English

penetrator · rank #92,990 · 0 variants · 0 confusables

  • FREQ-RARE #92,990
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH Pelagius

Nearest frequency peer: Pelagius (-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.

Long-tail ranks near “penetrator”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “penetrator” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for penetrator
PropertyValue
Headwordpenetrator
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#92,990
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “penetrator” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).penetratorfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Pelagius” (#92,989), “penknife” (#92,991), “pedagogue” (#92,988). Among 4,417 “P” headwords, “penetrator” is #92,990. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

penetrator is uncommon English at frequency #92,990 among 4,417 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

penetrator has no tracked misspelling variants, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From penetrate + -or. The correct English form is penetrator, spelled P-E-N-E-T-R-A-T-O-R.

Definition

  1. 1
    Something that penetrates.
  2. 2
    A long-range fighter aircraft designed to penetrate enemy air defences.

Etymology

From penetrate + -or.

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 "penetrator"?
"penetrator" is spelled P-E-N-E-T-R-A-T-O-R.
What does "penetrator" mean?
As a noun, "penetrator" means: Something that penetrates.
What is the origin of the word "penetrator"?
From penetrate + -or. 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 "penetrator", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Palestrina#92,973overbought#92,966prescriber#93,040notability#92,939

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

Source: FrequencyWords open word-frequency list