the part of a picture or pattern that is behind the main people or thing in it
a colour or design on which sth is painted, drawn, etc.
the details of a person's family, education, experience, etc.;the type of family, social position or culture that sb comes from
the circumstances or past events which help explain why sth is how it is ; information about these
a position in which people are not paying attention to sb/sth or not as much attention as they are paying to sb/sth else
"he is a lawyer with a sports background"
"he posed her against a background of rolling hills"
"the embassy filled him in on the background of the incident"
"they got a bad connection and could hardly hear one another over the background signals"
"when the rain came he could hear the sound of thunder in the background"
"you can't do that in a university setting"
"he played down his royal ancestry"
Elvira walks about pensively in the background.
出自： R. B. Sheridan
The most convenient way to photograph a silhouette is to position the subject some distance in front of a white background.
出自： J. Hedgecoe