behind
at the back of, as to be hidden;
slower or later than someone else;
responsible for or the cause of
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back
back, behind
after, afterwards
offstage
backstage
behind the scenes
pushing hands
backstage driving force
impetus
driving force
actuating force
catch up from behind
latecomers surpass the early starters
sight of one's back
view of somebody's back
figure viewed from behind