Answer: WHEELBARROW
Intuitively, it seems like wheelbarrel would be correct, because we know what a barrel is and barrow doesn’t seem to be a real word. However, wheelbarrow is correct.
Barrow is derived from Old English and loosely means “container”. So a wheelbarrow is basically a container on a wheel.
If the word “barrow” does ring a bell with you, it may be from The Lord of the Rings. In the book “The Fellowship of the Ring”, Frodo the hobbit and his 3 friends get captured by a Wight in an area called the Barrow Downs. The barrow downs are burial chambers (or, burial containers, thus barrows) where men from the first age are buried. The hobbits are rescued by a powerful character named Tom Bombadil.
If you saw the movie “The Fellowship of the Ring”, you may be having a tough time remembering these events. That’s because Peter Jackson, the director of the Lord of the Rings trilogy, elected to remove these scenes, as well as the character of Tom Bombadil, from the movie to keep the movie moving smoothly,