The term AS GEARS MESH can be broken down into two crossword solutions: ENGAGE (6 letters) and MESHED (6 letters). This phrase is used to describe the process of two gears coming together and interlocking. When two gears mesh, they ENGAGE with each other, forming a connection that allows them to turn in unison. This process is essential for machines that rely on gears to operate, such as cars, clocks, and bicycles.