[merge] into a lane

to change one's vehicle's position and smoothly join the flow of traffic in a different lane while driving

When approaching the highway exit, make sure to merge into the right lane.
The driver safely merged into the left lane to overtake a slower-moving vehicle.
It's important to use your turn signal when you want to merge into a different lane.
When the construction zone ends, traffic will need to merge into the open lane.
The driver struggled to merge into the middle lane during heavy rush hour traffic.