To sell something at a high price (i.e., to obtain a relatively large amount of money for an item).
古いゲーム機をオークションで高く売ることができた。
I was able to sell my old game console for a high price at auction.
ブランド品は状態が良ければ高く売れることが多い。
Brand-name goods often sell for high prices if they're in good condition.
売り方を工夫すれば、同じ商品をもっと高く売れるかもしれない。
If you improve how you sell it, you might be able to sell the same item for a higher price.