customer

/ˈkʌstəmə/

//ˈkʌstəmə// noun

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

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

The verdict

“customer” is a regularly-used English word, ranked #2,434 in English word frequency and used as a noun.

#2,434
frequency rank, English
8
letters
12
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A habitual patron, regular purchaser, returning client; a person or company who has a custom of buying from a particular business.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

customer vs customs
75% similar
customer vs customers
89% similar
customer vs custom
75% similar

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

Key facts for customer
PropertyValue
Headwordcustomer
LanguageEnglish
Part of speechNoun
IPA/ˈkʌstəmə/
Letters8
Frequency rank#2,434
Misspellings tracked12
Confusable pairs4
SourceWiktionary (kaikki.org)

Where “customer” 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). customer lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for customer is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈkʌstəmə/. Corpus data places it at rank #2,434 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 12 likely wrong-spelling variants for customer, with forms such as "ccustomer", "csutomer", and "cusotmer". 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 4 confusable-pair relationships, "customs", "customers", "custom", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle English custumer, from Old French coustumier, costumier (compare modern French coutumier), from Medieval Latin custumarius (“a toll-gatherer, tax-collector”, noun), from custumarius (“pertaining to custom or customs”, adjective), from custuma (“… The correct English form is customer, spelled C-U-S-T-O-M-E-R.

Definition

  1. 1
    A habitual patron, regular purchaser, returning client; a person or company who has a custom of buying from a particular business.
  2. 2
    A patron, a client; a person or company who purchases or receives a product or service from a business or merchant, or intends to do so.
  3. 3
    A person, especially one engaging in some sort of interaction with others.
  4. 4
    A native official who exacted customs duties.

Etymology

From Middle English custumer, from Old French coustumier, costumier (compare modern French coutumier), from Medieval Latin custumarius (“a toll-gatherer, tax-collector”, noun), from custumarius (“pertaining to custom or customs”, adjective), from custuma (“custom, tax”). More at custom. By surface analysis, custom + -er.

This word in other languages

parroquiano(Español)chaland(Français)Stammkunde(Deutsch)cliente(Português)

Common misspellings

Also misspelled as: ccustomer,csutomer,cusotmer,cusstomer,custmoer,custoemr,customerr,custommer,customre,custtomer,cutsomer,ucstomer

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of customer - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ccustomer1csutomer2cusotmer2cusstomer1custmoer2custoemr2customerr1custommer1
Edit distance from "customer"

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 "customer"?
"customer" is spelled C-U-S-T-O-M-E-R. The IPA pronunciation is /ˈkʌstəmə/.
What does "customer" mean?
As a noun, "customer" means: A habitual patron, regular purchaser, returning client; a person or company who has a custom of buying from a particular business.
What words are commonly confused with "customer"?
"customer" is commonly confused with "customs", "customers", "custom". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "customer"?
The IPA (International Phonetic Alphabet) transcription for "customer" is /ˈkʌstəmə/. 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 "customer"?
From Middle English custumer, from Old French coustumier, costumier (compare modern French coutumier), from Medieval Latin custumarius (“a toll-gatherer, tax-collector”, noun), from custumarius (“pertaining to custom or customs”, adjective), from ... 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 “customer”

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

  • The one correct English spelling is C-U-S-T-O-M-E-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkʌstəmə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “customs” - see the side-by-side comparison. customer vs customs
  • Browse more English words and confusable pairs in the same reference. English words
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