こうか高価kouka
1.

Refers to items or goods that possess a significant monetary value, indicating that they are considered expensive or costly.

2.

Describes the quality of being associated with a substantial price, often implying that the item is valuable or precious due to its high cost.

3.

Indicates a scenario where the expenses involved are considerable, suggesting that a notable sacrifice or investment is required.

Example:

そんな高価な本は買えないよ。

さいこうかかく最高価格saikoukakaku
1.

The maximum amount of money that can be charged for a product or service, beyond which consumers are not allowed to pay.

2.

A regulatory limit set to prevent prices from exceeding a certain level, often aimed at protecting consumers from excessively high costs.

3.

The topmost price point established in a market, indicating the upper boundary that sellers can legally or ethically charge for a specific good or service.