roll
intransitive verbTo move forward along a surface by revolving on an axis or by repeatedly turning over.
intransitive verbTo travel or be moved on wheels or rollers.
intransitive verbTo travel around; wander.
intransitive verbTo travel or be carried in a vehicle.
intransitive verbTo be carried on a stream.
intransitive verbTo start to move or operate.
intransitive verbTo work or succeed in a sustained way; gain momentum.
intransitive verbTo go by; elapse.