casemate

/ˈkeɪsmeɪt/

//ˈkeɪsmeɪt// noun

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

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A bombproof chamber, usually of masonry, in which cannon may be placed, to be fired through embrasures; or one capable of being used as a magazine, or for quartering troops.

Key facts for casemate
PropertyValue
Headwordcasemate
LanguageEnglish
Part of speechNoun
IPA/ˈkeɪsmeɪt/
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “casemate” sits in English frequency

casemate 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

casemate is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈkeɪsmeɪt/. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for casemate in our index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From French casemate, from Italian casamatta. Further origin unclear, could be a compound casa (“house”) + matta (“mat (of straw), roof made of such material”), or borrowed from Greek χάσματα (chásmata) the plural of χάσμα (chásma, “gap”), presumably referr… The correct English form is casemate, spelled C-A-S-E-M-A-T-E.

Definition

  1. 1
    A bombproof chamber, usually of masonry, in which cannon may be placed, to be fired through embrasures; or one capable of being used as a magazine, or for quartering troops.
  2. 2
    A hollow molding, chiefly in cornices.

Etymology

From French casemate, from Italian casamatta. Further origin unclear, could be a compound casa (“house”) + matta (“mat (of straw), roof made of such material”), or borrowed from Greek χάσματα (chásmata) the plural of χάσμα (chásma, “gap”), presumably referring to the loopholes for shooting from.

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 "casemate"?
"casemate" is spelled C-A-S-E-M-A-T-E. The IPA pronunciation is /ˈkeɪsmeɪt/.
What does "casemate" mean?
As a noun, "casemate" means: A bombproof chamber, usually of masonry, in which cannon may be placed, to be fired through embrasures; or one capable of being used as a magazine, or for quartering troops.
How do you pronounce "casemate"?
The IPA (International Phonetic Alphabet) transcription for "casemate" is /ˈkeɪsmeɪt/. 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 "casemate"?
From French casemate, from Italian casamatta. Further origin unclear, could be a compound casa (“house”) + matta (“mat (of straw), roof made of such material”), or borrowed from Greek χάσματα (chásmata) the plural of χάσμα (chásma, “gap”), presuma... 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 “casemate”

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

  • The one correct English spelling is C-A-S-E-M-A-T-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkeɪsmeɪt/ (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
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