Caisson workers are individuals who work in a narrow and dangerous environment, often underground, where noxious gases and extreme temperatures make the work highly challenging. There are several synonyms for the term caisson worker that may vary according to the context, such as tunneller, sandhog, and drill operator, indicating the specific responsibility or location of the worker. Other common synonyms include construction worker, bridge builder, marine engineer, or power plant worker, highlighting the nature of the work environment and the skills required to succeed in the field. Regardless of the term used, caisson workers play a crucial role in building and maintaining vital infrastructure and need to be highly skilled, disciplined, and committed to safety standards.