合ごう流りゅう注ちゅう意いMeanings1expressionbeware of merging trafficFixed expression used on road signs and surface markings to warn drivers of an upcoming merge point.前ぜん方ぽうに「合ごう流りゅう注ちゅう意い」の標ひょう識しきが見みえた。I saw a 'Beware of Merging Traffic' sign ahead.