changes
n. C / Un. the act of making something different or the result of that difference. You use this when something is no longer the same as it was before.
n. the act or instance of making or becoming different; the substitution of one thing for another. Often used in the plural to describe a series of modifications or a general shift in state.
The weather changes quickly in the mountains.
The new manager plans to make several changes to the office schedule to improve productivity.
Sociologists argue that rapid technological changes are fundamentally altering the way humans interact within their local communities and across global networks.
Countable when referring to specific instances of modification; uncountable when referring to the general process of becoming different.