This is the 4971st most frequent Japanese word.
竜王山
"竜王山" translates to "Dragon King Mountain."
竜王山 is used here as a proper noun, referring to a specific mountain.
昨日、竜王山にハイキングに行きました。
Yesterday, I went hiking on Mount Ryuo.
竜王山 is again a proper noun, describing the mountain as an object of discussion.
竜王山はその美しい景色で有名です。
Mount Ryuo is famous for its beautiful scenery.
竜王山 defines the location where the described scenario occurs, emphasizing its significance.