Definition of "sure"
adjective:
-
Physically secure and certain, non-failing, reliable.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Certain in one's knowledge or belief.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Certain to act or be a specified way.
from Wiktionary, Creative Commons Attribution/Share-Alike License
-
adverb:
interjection:
-
This sense) Yes, of course.
from Wiktionary, Creative Commons Attribution/Share-Alike License
-