割引

1. Origins, structure, and basic meaning

• Structure: 割引 is read わりびき and means a discount from an established price.
• Basic usage: It describes conditions for reduced admission or purchases made at a discount.

2. Common pitfalls and similar expressions

• Discount and free admission
  • 割引 means a reduced price, not necessarily no payment as in 無料. The discount rate is a separate piece of information.
• State and action
  • 料金が割引になる describes the price being discounted.
  • 料金を割引する describes reducing it.