Flight paths are the routes taken by aircrafts in the sky. Vectors (7 letters) are lines that have both direction and magnitude, Skyways (7 letters) are routes in the sky used by aircrafts, Arcs (4 letters) are curved lines that form a part of a circle, Airlanes (8 letters) are routes in the sky used by commercial airlines, and TRAJECTORIES (12 letters) are the paths of a projectile or an object moving through space. All of these terms are related to flight paths, which are the routes taken by aircrafts in the sky.