Cowboy (noun)

1. A worker in the cowboy tradition, especially in the western US, who herds and tends cattle, especially in an open range.
2. A person who engages in daring or dangerous activities, especially one who is reckless or irresponsible.

Origin:

Mid 19th century: originally used of a cattle driver in the western us, later extended to other western frontier workers.

Examples:

1. The old cowboy was a legend in his own time.
2. The cowboy was a skilled horseman and marksman.
3. The cowboy was a symbol of freedom and adventure.
4. The cowboy was notorious for his wild behavior.
5. The cowboy was hired to help with the roundup.