outside
AdverbAdjectivePreposition[C/U] Both
This word creates a sharp spatial binary, separating the protected, interior environment from the exposed, external world. It carries a sense of openness and vulnerability, often implying a lack of shelter or a departure from a controlled setting.
Countable when referring to a specific outer surface (the outside of the box). Uncountable when referring to the general area beyond a building (it is cold outside).