| high-level | (adj) at an elevated level in rank or importance, Syn. upper-level, high-ranking, Example: a high-level official; a high-level corporate briefing; upper-level management |
| high-level | (adj) occurring at or from a relative high altitude, Syn. high-altitude, Example: high-level bombing |
| high-level formatting | (n) (computer science) the format for the root directory and the file allocation tables and other basic configurations |
| high-level language | (n) a problem-oriented language requiring little knowledge of the computer on which it will be run |
| high-level radioactive waste | (n) radioactive waste that left in a nuclear reactor after the nuclear fuel has been consumed |