B1
into a bus, train, plane, etc. or onto a horse
Dictionary examples:
The elephant tried to get on the bus, but his trunk got stuck. (0.0)
The clown struggled to get on the tiny tricycle, making everyone laugh. (0.0)
The penguin waddled on the plane, asking for a fish menu. (0.0)
It’s time to get on the bus. (7.4)
The train suddenly started moving as I was stepping on. (31.2)