1To discount or reduce a price; to take off a percentage from a price.
店長は常連客のために商品を二割り引いた。
The manager discounted the product by 20% for a regular customer.
早期予約なら料金を割り引いてくれると言われた。
They said they'd give a discount for early reservations.
まとめ買いをすればさらに割引くことが可能だ。
If you buy in bulk, it's possible to reduce the price even more.
2To discount (an account or statement) figuratively; to not take at face value or to treat something with skepticism.
彼の話は誇張が多いから、少し割り引いて聞いたほうがいい。
He often exaggerates, so it's better to take his story with a grain of salt.
証言に矛盾があるので、その部分は割り引いて評価する必要がある。
There are contradictions in the testimony, so those parts need to be evaluated with skepticism.
好意的な噂だとしても全てを鵜呑みにせず割り引いて考えよう。
Even if it's a favorable rumor, don't swallow it whole; consider it with reservations.