1. adverb /ˈʌð.ə(ɹ)ˌwaɪz/
a) Differently, in another way.
You may be right, but I think otherwise.
b) In different circumstances.
I’m not well today, otherwise I would have helped.
2. adjective /ˈʌð.ə(ɹ)ˌwaɪz/
Other than supposed, different.
He said he didn’t do it, but the evidence was otherwise.
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