A more thorough explanation:

Definition: A worker is someone who does a job for someone else in exchange for payment.

Examples:

• A construction worker builds houses for a company.
• A waitress works at a restaurant and serves food to customers.
• A software engineer writes code for a tech company.

These examples illustrate the definition of a worker because each person is employed by someone else to perform a specific job or service in exchange for payment. They are not working for themselves, but rather for a company or individual who has hired them.