Grand jeté is a classical ballet term meaning “big throw.” It describes a big jump where the dancer throws one leg into the air, pushes off the floor with the other, jumping into the air and landing again on the first leg.
A grand jeté is considered a basic grand allegro step that is often taught to beginners and intermediate students to allow them to start getting a feel for big jumps. It looks similar to another popular grande allegro step, a grande jeté pas de chat (or saut de chat), with the difference being that a grand jeté starts with a straight thrown leg instead of the dancer developpeing the leg.