High-grade (adjective)

Of superior quality or value.

Origin:

Formed from the words 'high' and 'grade' which both have separate meanings.

Examples:

1. The company only used high-grade materials in their products.
2. She was looking for high-grade jewelry to give as a gift.
3. The high-grade steel was more durable and longer-lasting than regular steel.
4. The high-grade coal was used to generate electricity in power plants.
5. The high-grade wine was highly sought after by collectors and connoisseurs.