A large tree — a tree with a thick trunk and wide canopy; often used for prominent trees in parks or forests.
公園の中央に大木が立っていて、夏は日陰ができる。
A large tree stands in the center of the park and provides shade in summer.
その大木は樹齢が何百年にもなると言われている。
That large tree is said to be several hundred years old.
強風で大木の枝が折れて道をふさいだ。
A branch of the large tree broke in the strong wind and blocked the road.