The term PART OF A BARN can be broken down into two crossword solutions: MOW (3 letters) and LOFT (4 letters). MOW is an abbreviation for mowing, which is the process of cutting grass or other vegetation with a machine. The mowing of a barn's lawn is an important part of its upkeep. LOFT is a space in a barn that is usually used for storage. It is typically located above the main floor of the barn and accessed by a ladder or stairs.