from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or relating to people of the highest office or rank.
- adj. Of or relating to the highest office or rank: a top-level job.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Highest
- adj. Best
- adj. Primary; a web page that is directly accessible by typing its name, not followed by any additional information.
top + level (Wiktionary)