noun
unicycle; monocycle
A one-wheeled vehicle ridden by a person, often used in performances or as a hobby.
彼は一輪車に乗って公園を走っている。
He is riding a unicycle around the park.
noun
A single-wheeled cart pushed by hand, used for carrying loads. In Japanese, this is a distinct meaning from unicycle, though the same word is used.
庭の土を一輪車で運んだ。
I carried the garden soil with a wheelbarrow.