surer; surest
Definition of sure
(Entry 1 of 2)
1a
: marked by or given to feelings of confident certainty
I'm sure I'm right
b
: characterized by a lack of wavering or hesitation
sure brush strokes a sure hand
2
: admitting of no doubt : indisputable
spoke from sure knowledge
b
: bound to happen : inevitable
sure disaster
4
: careful to remember, attend to, or find out something
be sure to lock the door
5
: firmly established : steadfast
a sure hold
6
: reliable, trustworthy
a sure friend
7
obsolete
: safe from danger or harm
sure
adverbDefinition of sure (Entry 2 of 2)
: surely
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Merriam-Webster unabridged
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Time Traveler for sure
The first known use of sure was in the 13th century
See more words from the same century