A career is the work someone does throughout their adult life, usually in a particular field or profession. A career is something you build over time, developing skills and expertise as you go, spanning many years or even decades.

A teacher might spend thirty years in education, moving from classroom teacher to principal, building a career in education. A software engineer might start by writing simple programs and eventually lead teams creating complex applications, advancing through her career step by step. Some people have careers in medicine, law, science, business, or the arts. Others build careers in trades like carpentry, plumbing, or electrical work.

The word suggests growth, learning, and often a sense of purpose alongside earning money. Someone might say, “I want a career helping people” or “I'm interested in a career in marine biology.” When you think about your future career, you're imagining what kind of work might engage and challenge you for decades.

Some people stay in one career their whole lives, becoming true experts. Others make a career change, switching to something completely different after years in another field. Either path can lead to a fulfilling professional life.