The term 'Plane Path' can be broken down into three crossword solutions: AISLE (5 letters), VECTOR (6 letters), and ARC (3 letters). An AISLE is a passageway between seating areas in an airplane, typically located on either side of the cabin. A VECTOR is a mathematical representation of a direction and magnitude, which can be used to describe the path of an airplane. An ARC is a curved line that forms part of a circle, which can be used to describe the path of an airplane as it turns in the sky. Together, these three solutions form the term 'Plane Path', which describes the route an airplane takes through the sky.