Definition of sures:
(adv) :
(modal) Without doubt, certainly.
(adj) :
Certain in one's knowledge or belief.
(adj) :
Physically secure and certain, non-failing, reliable.
(adj) :
(followed by a to infinitive) Certain to act or be a specified way.
(adj) :
(obsolete) Free from danger; safe; secure.
(adj) :
(obsolete) Betrothed; engaged to marry.