This is the 342nd most frequent Catalan word.
canviar
To change.
In this sentence, 'canviar' is used to indicate altering one's profession or job.
He decidit canviar de feina aquest any.
I have decided to change jobs this year.
'Canviar' here describes the alteration or shift in weather conditions occurring rapidly.
El temps pot canviar molt ràpidament a la muntanya.
The weather can change very quickly in the mountains.
Here, 'canviar' implies substituting one item for another, emphasizing the act of exchanging.