What does "sequence" mean? Also, in what circumstances could I use it?

Native speaker’s answer
Rebecca
"Sequence" means "order" or "succession." In this context however, "dance sequence" doesn't mean "dance order" but dance routine or choreography. In the video, the actress is stating that she really liked the dance routines in the film. It's not a typical use of the term but you can understand the general meaning based on the context clue given by "dance," which precedes "sequence" here. Ex: The sequence of this process is all wrong. Ex: The dance routines of the musical are quite difficult to pull off.