capper

noun

"capper" is a 6-letter English headword indexed on PlainSpell.

The verdict

“capper” is uncommon English (frequency #54,673 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#54,673
frequency rank, English
43,570
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A device or person that applies caps, as to bullets or bottles.

Corpus desk

Index EN-capper · capper · English

capper · rank #54,673 · 0 variants · 0 confusables

  • FREQ-RARE #54,673
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 43,570
  • PHOTO-FINISH capitalisation

Nearest frequency peer: capitalisation (-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.

Frequency neighbourhood for “capper”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “capper” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of May 6, 2026
Key facts for capper
PropertyValue
Headwordcapper
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#54,673
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “capper” 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). capper 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

capper is uncommon English at frequency #54,673 among 43,570 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.

Our edit-distance generator produced no likely misspellings for capper, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Middle English capper; equivalent to cap + -er. The correct English form is capper, spelled C-A-P-P-E-R.

Definition

  1. 1
    A device or person that applies caps, as to bullets or bottles.
  2. 2
    A person that makes or sells caps.
  3. 3
    A finale; something that is conclusively better, or "caps it all off".
  4. 4
    A by-bidder; a decoy for gamblers.

Etymology

From Middle English capper; equivalent to cap + -er.

This word in other languages

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.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "capper"?
"capper" is spelled C-A-P-P-E-R.
What does "capper" mean?
As a noun, "capper" means: A device or person that applies caps, as to bullets or bottles.
What is the origin of the word "capper"?
From Middle English capper; equivalent to cap + -er. 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 "capper", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 6 letters (nearest by frequency 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