high-level

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high-lev·el • adj. at or of a level above that which is normal or average: a high-level cistern high-level crop production. ∎  relating to or involving people of high administrative rank or great authority: high-level negotiations. ∎  Comput. denoting a programming language (e.g., BASIC or Pascal) that is relatively accessible to the user, having instructions that resemble an existing language such as English. ∎  (of nuclear waste) highly radioactive and requiring long-term storage in isolation.