Definition

A large, watertight structure or box used for various purposes, such as closing off a dock, carrying ammunition, or conducting underwater construction.

Example

The workers used a caisson to build the foundation of the bridge underwater.

Conversation

Have you ever seen a caisson being used in construction?

No, I haven't! What is it exactly?

It's a watertight structure that helps with underwater work.

That sounds really interesting! I’d love to see one in action.

Synonyms & Antonyms

Root Explanation

Caisson comes from the French word 'caisson', meaning a box or chest. The term originally referred to a large box used for various purposes, including construction and military applications.

Memory Tip

Imagine a sturdy box ('caisson' in French) used for holding important materials or equipment — that's why caisson refers to a type of box or container.

Visually Confused Words