rule of the road
noun Nautical.
any of the regulations concerning the safe handling of vessels under way with respect to one another, imposed by a government on ships in its own waters or upon its own ships on the high seas.
Origin of rule of the road
First recorded in 1870–75
Words nearby rule of the road
rule of bigeminy,
rule of eleven,
rule of engagement,
rule of law,
rule of outlet,
rule of the road,
rule of three,
rule of thumb,
rule out,
rule the roost,
ruled surface