This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A one- or two-wheeled vehicle with handles at the rear, used to convey small loads.

n. A small, one-wheeled (rarely two-wheeled) cart with handles at one end for transporting small loads.

n. A light vehicle for conveying small loads. It has two handles and one wheel, and is rolled by a single person.

n. A barrow with one wheel or more, on which it runs.

v. transport in a wheelbarrow

n. a cart for carrying small loads; has handles and one or more wheels

"Of course, just getting a tarp, raking the leaves onto it, and lifting it into your current wheelbarrow is probably cheaper."

wheelbarrows   

transport    pushcart    handcart    cart    gocart   

wheelbarrow race   

mattock    pickaxe    plows    barrow    hoe    spade    trowel    wain    plow    crowbar