Pronunciation: ' h ī - ' le-v ə l
Function: adjective
Date: 1811
1 : occurring, done, or placed at a high level
2 : being of high importance or rank < high-level diplomats>
3 : of, relating to, or being a computer programming language (as BASIC or Pascal) which is similar to a natural language (as English) and in which each statement is translated by a compiler usually into several machine language instructions
4 : relating to or being nuclear waste that contains highly concentrated radioactive components which are environmentally hazardous