port-wine stain

noun

"port-wine-stain" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
15
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Synonym of naevus flammeus.

Key facts for port-wine stain
PropertyValue
Headwordport-wine stain
LanguageEnglish
Part of speechNoun
Letters15
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “port-wine stain” sits in English frequency

port-wine stain falls 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

port-wine stain is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Synonym of naevus flammeus.".

We couldn't generate a plausible misspelling set for port-wine stain, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This headword's origin isn't recorded in our source data, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is port-wine stain, spelled P-O-R-T---W-I-N-E- -S-T-A-I-N.

Definition

  1. 1
    Synonym of naevus flammeus.

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 "port-wine stain"?
"port-wine stain" is spelled P-O-R-T---W-I-N-E- -S-T-A-I-N.
What does "port-wine stain" mean?
As a noun, "port-wine stain" means: Synonym of naevus flammeus.
What language does "port-wine stain" come from?
"port-wine stain" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “port-wine stain”

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

  • The one correct English spelling is P-O-R-T---W-I-N-E- -S-T-A-I-N - every other letter order is a misspelling in standard orthography.
  • 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