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various; a variety of; all sorts of; many (different)
variously; in various ways; in many ways
various things; this and that
いろいろありがとうございます。
Thank you for everything.
いろいろ大変でしたね。
It must have been tough in many ways.
いろいろ悩んだが前に進むことにした。
I worried about various things but decided to move forward.