Definition: [adjective] Taking place or existing at a high level, altitude or elevation.
Definition: [adjective] Of or pertaining to a person of a high social position or high rank within a hierarchy or organization.
Definition: [adjective] Consisting of such people.
Example: high-level conference
Definition: [adjective] (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.