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article; item; thing; goods; stock
quality
flirtatiousness; coquetry
「科」 has other readings with different meanings.
この店にはいろいろな科の品が揃っている。
This store carries a variety of goods.
上等な科を取り揃えております。
We have a selection of fine goods.
科の良し悪しは見ればわかる。
You can tell the quality of goods just by looking.