Exterior
Part of speech: noun
Definition: the outside part, parts or surface of something. foreign lands
Part of speech: adjective
Definition: relating to the outside parts or surface of something being from outside a country, foreign outdoors
Example sentence: That's the worst thing about dementia: it gets you every time. Sufferers look and act the same but beneath the familiar exterior something quite different is going on. They're in another world and you cannot enter.
Outside
Part of speech: noun
Definition: The part of something that faces out; the outer surfaceThe external appearance of somethingThe space beyond some limit or boundary
Part of speech: adjective
Definition: External.A pitch that is away from the batter as it crosses home plate.
Part of speech: adverb
Definition: On, or towards the outsideOutdoors
Part of speech: preposition
Definition: On the outside of
Example sentence: Who looks outside, dreams; who looks inside, awakes.