bay window

noun

"bay-window" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A window space projecting outward from the main walls of a building and forming a bay in a room.

Corpus desk

Index EN-bay-window · bay window · English

bay window · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "B" 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 bay window
PropertyValue
Headwordbay window
LanguageEnglish
Part of speechNoun
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “bay window” in English

bay windowranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

bay window is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

Our edit-distance generator produced no likely misspellings for bay window, and the word's spelling is regular enough that our generator found nothing worth flagging. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Middle English baywyndow, baywyndowe, bay-windowe, equivalent to bay + window where bay refers to an opening between columns. The correct English form is bay window, spelled B-A-Y- -W-I-N-D-O-W.

Definition

  1. 1
    A window space projecting outward from the main walls of a building and forming a bay in a room.
  2. 2
    A protruding belly.
  3. 3
    The stomach of a pregnant woman.

Recorded use

Wiktionary examples

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

  1. Marriages that are based only on sex appeal generally fizzle out as soon as he gets a bay window and her figure becomes a bit lumpish.
  2. Bert came hustling up, bumping his way through the kids with his bay window.

Etymology

From Middle English baywyndow, baywyndowe, bay-windowe, equivalent to bay + window where bay refers to an opening between columns.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "bay window"?
"bay window" is spelled B-A-Y- -W-I-N-D-O-W.
What does "bay window" mean?
As a noun, "bay window" means: A window space projecting outward from the main walls of a building and forming a bay in a room.
What is the origin of the word "bay window"?
From Middle English baywyndow, baywyndowe, bay-windowe, equivalent to bay + window where bay refers to an opening between columns. 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.

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

Source: FrequencyWords open word-frequency list