pro·gres·sion 
/prəˈgrɛʃən/ noun
plural pro·gres·sions /prəˈgrɛʃən/ noun [count] 1 : the process of developing over a period of time
▪ Doctors were surprised by the rapid progression of the disease. ▪ the natural progression of his musical talent 2 : a continuous and connected series of actions, events, etc. : sequence
▪ a progression of activities
▪ Doctors were surprised by the rapid progression of the disease. ▪ the natural progression of his musical talent
▪ a progression of activities
