(へんせん)

へんせん
noun
transition; change over time
formalacademic
1. transition; change over time; evolution
The process of gradual change and development through history.
To research the evolution of language.
It changed with the passage of time.
歴史(れきし)変遷(へんせん)たどる
To trace the changes through history.

変遷(へんせん) refers to gradual change and evolution over time, typically used when discussing historical or social developments.

Forms

(へん) (change) + (せん) (shift/move) = transition over time

Common expressions

Typical subjects

Register

Formal/academic. Common in scholarly writing and historical discussions.