This is the 7985th most frequent Japanese word.
大石
"大石" means "large stone" or "boulder" in English.
The word '大石' in this sentence denotes a large stone or boulder present in the park which serves as a setting for children's activities.
公園には大きな大石があり、子供たちがそこに座って遊んでいます。
In the park, there is a large boulder, and children sit on it and play.
Here, '大石' refers to significant stones that hold historical and archeological importance found in a region.
歴史家たちは、この地域で発見された大石に古代文明の跡を見つけました。
Historians found traces of ancient civilization on the large stones discovered in this area.
In this usage, '大石' is a proper noun representing a person's name, which is common in Japanese surnames.