Definition of "walk-on" in 英语

noun

1. (sports) A student athlete who wants to try out for a college sports or athletic team without the benefit of a scholarship or having been recruited.

2. (theater, film) An actor of a small (or "bit") part in a theatrical production or film, often without speaking lines.

3. (chiefly attributive) Such a part in a play or film.

4. One who arrives and boards transport (such as a train or ferry) without having booked in advance.