High-level (adjective)

1. Resembling or relating to a high level of rank, quality, or achievement.
2. Having a high degree of complexity, abstractness, or generality.

Origin:

Mid 19th century: from high + level.

Examples:

1. The high-level executives met to discuss the company's strategy for the future.
2. The high-level mathematics course is designed for students with a strong background in calculus.
3. The high-level political discussions are intended to resolve the global conflict.
4. The high-level negotiations between the two nations resulted in a historic peace treaty.
5. The high-level athlete demonstrated incredible skill and dexterity in the competition.