Freshman (noun)

1. A first-year student at a college or university.
2. A beginner in any field.

Origin:

Early 19th century: from fresh + man, originally denoting a first-year student at a college or university.

Examples:

1. He is a freshman at the university.
2. She is a freshman in high school.
3. The freshman class is the largest in the school's history.
4. He is a freshman in the field of computer science.
5. She is a freshman in the business world.