sure

//ʃʊr//
A2Frequency Level 2Neutral
Visual representation of sure

Adjective

sureCanonical form
surerComparative
surestSuperlative
1

Completely confident or certain about something; having no doubt.

I'm sure that I locked the door.

2

Reliable or certain to happen or be the case; guaranteed.

There's no sure way to predict the weather.

3

Steady, firm, or secure in position or movement.

Make sure you have a sure grip on the rope.

Synonym

certainconfidentpositive

Antonym

unsuredoubtfuluncertain

Adverb

sureCanonical form
surerComparative
surestSuperlative
1

Certainly; without doubt (used for emphasis or agreement).

Sure, I can help you with that.