Changement is a classical ballet term meaning “change” but as a jump.
What does a Changement look like
A changement is when a dancer performs a jump from fifth position with the feet, jumping and changing the foot position in the air so they land with the opposite foot in front. So a dancer performing a changement with the right foot in front will plié, jump and straighten their legs, switch their legs and feet so the left foot is now in front while keeping their legs straight and feet pointed, then land in a plié.
Changements are usually done in a series but not always. They are taught at a beginner, basic level, but used throughout ballet in class, on stage and in all sorts of choreography performed by professionals.