Standard Lemma guide

breechblock

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

The metal block that closes the breech of a breech-loading gun after insertion of the cartridge.

Definition source: English Wiktionary via Wiktextract

Topics: engineering, firearms, government, military, natural-sciences, physical-sciences, politics, tools, war, weaponry

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: breech closer

Antonyms: none provided

Broader terms: blockage, block, closure, occlusion, stop, stoppage

History

Etymology

From breech + block.

Across languages

Translations

6 source translations are retained for this English entry.

  • Azerbaijani: çaxmaq — block that closes the breech of a breech-loading gun
  • Chinese Mandarin: 槍閂 /枪闩 (qiāngshuān) — block that closes the breech of a breech-loading gun
  • Chinese Mandarin: 炮閂 /炮闩 (pàoshuān) — block that closes the breech of a breech-loading gun
  • Finnish: sulkukappale — block that closes the breech of a breech-loading gun
  • Russian: затво́р (zatvór) — block that closes the breech of a breech-loading gun
  • Vietnamese: quy lát — block that closes the breech of a breech-loading gun