When it comes to describing a training program, there are various synonyms that can be used to express the idea of structured learning sessions. For instance, "educational course" is a great synonym that suggests a more structured approach to learning. "Instructional program" emphasizes the more hands-on approach that the training program might take. "Learning initiative" is a catchy synonym that suggests a more proactive approach to learning. "Developmental curriculum" emphasizes the idea of learning being a continuous process, while "professional development program" is often used in the context of workforce training. All in all, there are various words you can use instead of "training program," depending on the context you are using them in.