I .
1.
( of an army ) to move back from a place
SYN withdraw
2.
to decide not to do sth that you were intending to do, because of possible problems
SYN withdraw :
Their sponsors pulled back at the last minute.
II .
pull back | ˌpull sth ↔ ˈback
( sport ) to improve a team's position in a game :
Rangers pulled back to 4–3.
They pulled back a goal just before half-time.