Plumber/ˈplʌmər/ Definition 1 of 1Pro Tip 1/3Trade Profession A plumber is a skilled trade person; it's a respected job that requires special training. After finishing his course, he became a certified plumber. Pro Tip 2/3Emergency Services Plumbers are often called in emergencies, like when pipes burst. With the bathroom flooding, we urgently needed a plumber. Pro Tip 3/3Home Maintenance Plumbers are commonly associated with maintaining homes, not just fixing problems. Our plumber checks our heating system yearly.