高級

1. Origins, structure, and basic meaning

• Structure: 高級 is read as こうきゅう and is a noun and adjectival noun indicating high grade, quality, or status.
• Basic usage: It can modify with な, as in 高級な木材, or attach directly as the first element of a compound, as in 高級茶.

2. Common pitfalls and similar expressions

• Quality and price
  • 高級 centers on high quality or prestige and is not identical to 高価, which simply means expensive.
• Combination patterns
  • Independent adjectival use takes な, but established product or category compounds can join the nouns directly.