high-level

adjective higher-level · highest-level

1. Taking place or existing at a high level, altitude or elevation. It remains a key part of the busy Strathclyde railway system, with its high-level platforms served by trains to Lanarkshire, Ayrshire and England, and its low-level platforms a key artery at the heart of the busiest commuter network outside London.

   Opposite: low-level

2. Of or pertaining to a person of a high social position or high rank within a hierarchy or organization.
3. Consisting of such people. high-level conference
4. of a programming language Consisting of relatively natural language-like commands and mathematical notations which, after compilation or interpretation, become a set of machine language instructions.
5. A summary that provides a general overview and omits nearly all details. "To begin, a need or want is simply a broad definition of the overall requirements: the high-level description, the 30,000-foot view, and so on, of the problem without identifying any specifics." https://www.google.com/books/edition/Additive_Manufacturing_Handbook/H1kkDwAAQBAJ?hl=en&gbpv=1&pg=PT92
6. At (or associated with) an advanced level within the context of a game's progression system.