Standard Lemma guide

caisson

noun · 12 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • UK: /ˈkeɪ.sən/
  • UK, obsolete: /kəˈsuːn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: /ˈkeɪ.sɑn/
  • US: /ˈkeɪ.sən/
  • rhymes with -eɪsən
  • rhymes with (US) -eɪsɑn
  • CMU ARPABET: K EY1 S AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: K EH1 S AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A (permanent) enclosure from which water can be expelled, in order to give access to underwater areas for engineering works etc.

Definition source: English Wiktionary via Wiktextract

Topics: engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A structure with similar function that is temporary.

Definition source: English Wiktionary via Wiktextract

Topics: engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cofferdam, coffer

Antonyms: none provided

3

noun

Meaning 3

A coffer (sunken panel).

Definition source: English Wiktionary via Wiktextract

Topics: architecture

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The gate across the entrance to a drydock.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

Examples

  • Near-synonym: pontoon

Meaning relationships

Synonyms: camel, sea camel, pontoon

Antonyms: none provided

6

noun

Meaning 6

A two-wheeled, horse-drawn military vehicle used to carry ammunition (and a coffin at funerals).

Definition source: English Wiktionary via Wiktextract

Topics: government, military, politics, war

Examples

  • Near-synonym: limber

Meaning relationships

Synonyms: limber

Antonyms: none provided

7

noun

Meaning 7

A large box to hold ammunition.

Definition source: English Wiktionary via Wiktextract

Topics: government, military, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A chest filled with explosive materials, used like a mine.

Definition source: English Wiktionary via Wiktextract

Topics: government, military, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

large watertight chamber used for construction under water

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pneumatic caisson, cofferdam

Antonyms: none provided

Broader terms: chamber

10

noun

Meaning 10

a chest to hold ammunition

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ammunition chest

Antonyms: none provided

Broader terms: chest

11

noun

Meaning 11

a two-wheeled military vehicle carrying artillery ammunition

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: military vehicle

12

noun

Meaning 12

an ornamental sunken panel in a ceiling or dome

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: coffer, lacuna

Antonyms: none provided

Broader terms: panel

History

Etymology

Borrowed from French caisson. Doublet of cassone and cajón.

Across languages

Translations

18 source translations are retained for this English entry.

  • Armenian: սուզարկղ (suzarkġ) — enclosure from which water can be expelled
  • Bulgarian: кесон (keson) — enclosure from which water can be expelled
  • Finnish: kasuuni — enclosure from which water can be expelled
  • German: Senkkasten — enclosure from which water can be expelled
  • German: Caisson — enclosure from which water can be expelled
  • Italian: cassone — enclosure from which water can be expelled
  • Italian: tura — enclosure from which water can be expelled
  • Russian: кессо́н (kessón) — enclosure from which water can be expelled
  • Swedish: kassun — enclosure from which water can be expelled
  • Finnish: sulkuportti — gate across the entrance to a dry dock
  • Russian: батопо́рт (batopórt) — gate across the entrance to a dry dock
  • Russian: плаву́чий затво́р (plavúčij zatvór) — gate across the entrance to a dry dock
  • Bulgarian: парашут (parašut) — floating tank that can be submerged
  • Russian: понто́н (pontón) — floating tank that can be submerged
  • Irish: vaigín armlóin — two-wheeled horse-drawn military vehicle
  • Bulgarian: ракла (rakla) — large box of ammunition
  • Russian: заря́дный я́щик (zarjádnyj jáščik) — large box of ammunition
  • Swedish: ammunitionskista — large box of ammunition