海かい図ずかいずFreq.FrequencyTop 50,000Meanings1nounnautical chart; sea chartA map used for marine navigation, showing depths, coastlines, and hazards.船せん長ちょうは海かい図ずを広ひろげて航こう路ろを確かく認にんした。The captain spread out the nautical chart and checked the route.
