I though that けってい means decision. But in this game, it means “confirm” in the
English version.

[![enter image description
here](https://i.stack.imgur.com/TwLHE.jpg)](https://i.stack.imgur.com/TwLHE.jpg)
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2020-03-15T13:07:50.553
75026
2020-03-15T15:27:44.057
36597
question
meaning
Why does けってい mean confirm?
決定 can be used as a する-verb to mean 'to decide'. Also from 大辞林:

> ① はっきりときめること。また、きまること。 「活動方針を－する」

Now, 'confirm' is just more natural in English than saying 'decide' I suppose.
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2020-03-15T15:27:44.057
75031
2020-03-15T15:27:44.057
36716
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answer