I know that kore means “this” but i didn’t understand what does this sentence/word means i also didn’t know what is the meaning of nda
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1Probably a shortened version of なんだ. so "what is this?" Also, I heard んだ from old people a lot when I lived in sendai - meant "yep" like そうだ – chargerstriker Jul 8 '18 at 0:12