on the job prepositional phrase 3on-the-job adjective 1 prepositional phrase3 •working; busy; at work.In the United States, if you want to die on the job, you should become a logger or a commercial fisher. These two jobs occupy the top two spots on the highest risk careers. — 2025 •Being a police officer, as contrasted with a civilian. •(slang) Having sex. on-the-job adjective[before a noun]1 •obtained whilst workingOf course, such training facilities do exist, and they perform a vital role, but there's no substitute for on-the-job training and gaining experience from a real railway system. — 2024