Background (noun)

1. The physical, social, historical, and cultural setting in which something occurs.
2. The area or scenery behind the main object of contemplation, especially when perceived as a framework for it.
3. The total of a person's experience and knowledge, or the knowledge and experience of a particular group of people.
4. The part of a computer or television screen that is used for displaying additional or less important information.

Origin:

Late middle english, from back + ground.

Examples:

1. He was born in the mountains and has a strong connection to the rural background.
2. Her portrait was set against a beautiful countryside background.
3. He has a rich background in computer science.
4. On the background of your computer screen, you can see your wallpaper.
5. The website's background color is blue.