Server (noun)

1. A person or device that serves food or drink.
2. A computer or program that manages access to a centralized resource or service in a network.
3. A person whose job is to serve customers in a restaurant or hotel.

Origin:

Late middle english: from old french serveur, from latin servitor "servant", from servire "to serve".

Examples:

1. The server brought the food to the table.
2. The server is down, so the website is not available.
3. The server greeted the guests and showed them to their table.
4. The email server manages the flow of emails.
5. The server is responsible for taking orders and serving food.