To change over time (seasons, eras, fashions, etc.); to shift gradually.
窓から見える景色が季節ごとに移り変わる。
The scenery visible from the window changes with each season.
時代が移り変わると価値観も変わる。
As times change, values also change.
流行はすぐに移り変わるので、服の選び方が難しい。
Fashions change quickly, so choosing clothes is difficult.
町の表情が年々移り変わっていくのを感じる。
I can feel the town's character changing year by year.