バックグラウンド

noun

background (portion of an image or scene behind the main figure; portion less important than the figure) / one's personal background

Music is playing in my background.

意味（1）

background (portion of an image or scene behind the main figure; portion less important than the figure)

意味（2）

one's personal background

意味（3）

(computing) activity not normally visible to, or immediately relevant to a user

bakkuguraundo de hashitteiru puroguramua program running in the background