progression
n. C / Un. the process of moving gradually from one stage to the next. It describes how something develops or improves over time.
n. the process of developing or moving gradually towards a more advanced state. In mathematics or music, it refers to a sequence of numbers or chords that follow a specific rule.
The doctor is happy with the patient's steady progression toward recovery.
The curriculum is designed to ensure a logical progression from basic grammar to advanced conversational skills.
The artist's early sketches show a clear progression from simple line drawings to the complex, layered oil paintings that eventually defined her career.
From Middle English progressioun, from Old French progression and its etymon Latin prōgressiō. By surface analysis, progress + -ion.
Often used with the preposition 'from' and 'to' to show the start and end points of development.