This is the 16799th most frequent Russian word.
сменятся
"Сменяться" means "to be replaced" or "to change alternately."
The word 'сменятся' is used here to express a change or replacement, indicating that one period will give way to another.
Эти времена скоро сменятся более спокойными.
These times will soon be replaced by more peaceful ones.
'Сменятся' in this sentence refers to the alteration or gradual change of one state to another over time.
Краски на картине через годы сменятся на более тусклые.
The colors on the painting will change to duller ones over the years.
Here, 'сменятся' signifies the transition or succession from one condition, cold, to another, warmth, due to seasonal change.