costumer

/ˈkɒstjuːmə(ɹ)/

//ˈkɒstjuːmə(ɹ)// noun

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

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

The verdict

“costumer” is uncommon English (frequency #69,759 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#69,759
frequency rank, English
43,570
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A person who designs, makes or supplies theatrical costumes; a costumier.

Key facts for costumer
PropertyValue
Headwordcostumer
LanguageEnglish
Part of speechNoun
IPA/ˈkɒstjuːmə(ɹ)/
Letters8
Frequency rank#69,759
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “costumer” 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). costumer 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

costumer is uncommon English at frequency #69,759 among 43,570 “C” headwords, classed as anoun, transcribed /ˈkɒstjuːmə(ɹ)/. Rarity is why readers land here mid-draft. 3 senses are on record.

We couldn't generate a plausible misspelling set for costumer, which points to an orthography that plays by predictable English rules. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From costume + -er (occupational suffix) or + -er (Variety “-er”). The correct English form is costumer, spelled C-O-S-T-U-M-E-R.

Definition

  1. 1
    A person who designs, makes or supplies theatrical costumes; a costumier.
  2. 2
    A person who wears a costume or takes part in cosplay.
  3. 3
    A costume drama.

Etymology

From costume + -er (occupational suffix) or + -er (Variety “-er”).

Synonyms

costumier

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 "costumer"?
"costumer" is spelled C-O-S-T-U-M-E-R. The IPA pronunciation is /ˈkɒstjuːmə(ɹ)/.
What does "costumer" mean?
As a noun, "costumer" means: A person who designs, makes or supplies theatrical costumes; a costumier.
How do you pronounce "costumer"?
The IPA (International Phonetic Alphabet) transcription for "costumer" is /ˈkɒstjuːmə(ɹ)/. 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 "costumer"?
From costume + -er (occupational suffix) or + -er (Variety “-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.

Using “costumer”

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

  • The one correct English spelling is C-O-S-T-U-M-E-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkɒstjuːmə(ɹ)/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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