northwest passage(n = noun.location) - a water route between the Atlantic Ocean and the Pacific Ocean along the northern coast of North America; Europeans since the 16th century had searched for a short route to the Far East before it was successfully traversed by Roald Amundsen (1903-1906);
is a kind of itinerary, path, route

N  circuition, circulation, turn, curvet, excursion, circumvention, circumnavigation, circumambulation, northwest passage, circuit, turning, wrench, evolution, coil, corkscrew, turning, circuitous, circumforaneous, circumfluent, round about.

air passage, bird of passage, giant northwest shipworm, inland passage, inside passage, musical passage, north northwest, northwest, northwest by north, northwest by west, northwest territories, northwest wind, pacific northwest, passage, purple passage, rite of passage, west northwest, windward passage