adverb
used to emphasize the degree or extent of something
conjunction
used to introduce a clause expressing a result or consequence
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The experiment was conducted meticulously, so the results are highly accurate.
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I studied really hard for the test, so I'm hoping to get a good grade.
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I've been working out a lot lately, so I'm starting to see some gains.
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She put in a lot of effort into her presentation, so it really paid off in the end.