A chosen pursuit; a profession or occupation. The general course or progression of one's working life or one's professional achievements: an officer with a distinguished career; a teacher in the midst of a long career. A path or course, as of the sun through the heavens. Speed: "My hasting days fly on with full career\u201d ( John Milton). Doing what one does as a permanent occupation or lifework: career diplomats; a career criminal. To move or run at full speed; rush. See Usage Note at careen.