postal code

noun

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

The verdict

“postal code” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A sequence of letters or numbers added to a postal address to aid the sorting and delivery of post or mail.

Corpus desk

Index EN-postal-code · postal code · English

postal code · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "P" thin
  • PHOTO-UNK Peer pending

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.

Key facts for postal code
PropertyValue
Headwordpostal code
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “postal code” in English

postal codefalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

postal code is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A sequence of letters or numbers added to a postal address to aid the sorting and delivery of post or mail.".

The misspelling generator found no plausible variants for postal code, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

No borrowing history is documented for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is postal code, spelled P-O-S-T-A-L- -C-O-D-E.

Definition

  1. 1
    A sequence of letters or numbers added to a postal address to aid the sorting and delivery of post or mail.

Recorded use

Wiktionary examples

These source excerpts show how postal code appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Don't forget to add the postal code to the envelope, or it won't be delivered on time.
  2. Taiwan, for instance, extends its civilian control over Itu Aba as a municipality that is part of Kaohsiung's Cijin District, and it has its own postal code.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "postal code"?
"postal code" is spelled P-O-S-T-A-L- -C-O-D-E.
What does "postal code" mean?
As a noun, "postal code" means: A sequence of letters or numbers added to a postal address to aid the sorting and delivery of post or mail.
What language does "postal code" come from?
"postal code" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

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

Source: FrequencyWords open word-frequency list