What is different between going away and going out?

[Mizuki]

What is different between going away and going out?

[Mister Micawber]

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'Going away' is a linear distance, becoming farther and farther from the starting point.
'Going out' is moving from inside to outside an enclosure.

Both probably appear in other idiomatic or metaphoric uses.
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Native English teacher at Mister Micawber's