S: (n) transition, modulation (a musical passage moving from one key to another)
S: (n) transition (a passage that connects a topic to one that follows)
Verb
S: (v) transition (cause to convert or undergo a transition) "the company had to transition the old practices to modern technology"
S: (v) transition (make or undergo a transition (from one state or system to another)) "The airline transitioned to more fuel-efficient jets"; "The adagio transitioned into an allegro"