said esp of a train or road vehicle: to leave or depart
to withdraw from a military position
to withdraw from a joint enterprise or agreement
said of an aircraft: to resume horizontal flight after a dive
said of a motor vehicle: to move out from behind a vehicle or into a stream of traffic
pull out all the stops
to do everything possible to achieve an effect or action
[with reference to pulling out all the stops of an organ, bringing all the pipes into play and producing a full and thrilling sound]