1. the work or trade of installing and connecting pipes, especially for water, gas, or steam systems
Usage: often used as a mass noun or uncountable; can refer to the profession or the activity itself
2. the system of pipes or the arrangement of pipes in a building or structure
Usage: technical usage

Examples

• He learned pipefitting as an apprentice and now runs his own business.
• The pipefitting in the old building needed to be completely replaced.
• Proper pipefitting is essential to prevent leaks in the plumbing system.
• She decided to pursue a career in pipefitting after high school.
• The contractor hired experienced workers for the pipefitting on the new construction project.
• Pipefitting requires knowledge of building codes and safety regulations.