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 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#92,990
frequency rank, English
46,516
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Something that penetrates.

Key facts for penetrator
PropertyValue
Headwordpenetrator
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#92,990
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “penetrator” 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). penetrator 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

penetrator is uncommon English at frequency #92,990 among 46,516 “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.

Using “penetrator”

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

  • The one correct English spelling is P-E-N-E-T-R-A-T-O-R - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this 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 FrequencyWords open word-frequency list