A section of a road or path that crosses over an obstacle, especially another road, railway, etc.
To pass above something, as when flying or moving on a higher road.
To exceed, overstep, or transcend a limit, threshold, or goal.
To disregard, skip, or miss something.
A road, track, path, or street for going under another way or obstacle; an underpass.
An underground passage, subway, tunnel.
A voyage, especially underwater.
In motion, in progress; being done or carried out; on a journey.