A bundle of hay is a collection of hay that has been tied together for storage or transportation. The crossword solutions for this term are WISP (4 letters), BALE (4 letters), TRUSS (5 letters), SHEAF (5 letters), BALES (5 letters), BALER (5 letters), and MOW (3 letters). A WISP is a small bundle of hay, while a BALE is a larger bundle. A TRUSS is a bundle of hay that has been tied together with rope or twine. A SHEAF is a bundle of hay that has been bound together with a band or strap. Bales are bundles of hay that have been compressed into a rectangular shape. A BALER is a machine used to compress hay into bales. Finally, MOW is a verb meaning to cut down and gather hay.