Respuesta :
The word or phrase that best defines the italicized word in "And by the moon the reaper weary, Piling sheaves in uplands airy" would be bundles of grain.
The italicized word is SHEAVES.
The correct option is BUNDLES OF GRAINS.
In English language, literally, sheaves refers to an amount of stalks and ears of cereal plants that are bound together as a bundle. Cereal plants are usually packed in this manner after harvest. Sheaves generally refers to a bundle of things that are tied together.