Adjective high-grade has 1 sense

1. finest, high-grade, top-quality, top-grade - surpassing in quality; "top-grade ore"
   Antonym: worst (indirect, via best)
   

High-grade

Part of speech: Adjective

Senses:

1. of superior quality or excellence
2. used to describe the grade of material or product
3. used to describe a high level of importance or seriousness
4. used to describe the advanced level of a disease or medical condition

Usage:

• The restaurant only serves high-grade ingredients, ensuring a delicious and memorable dining experience.
• This high-grade steel is extremely durable and will withstand tough conditions.
• The safety protocols are of high-grade to guarantee the protection of the employees.
• The patient's cancer has progressed to a high-grade stage, requiring aggressive treatment.

Possible related products on Amazon:

• High-Grade Earphones
• High-Grade Cookware Set
• High-Grade Laptop