sûr

/syʁ/
1. General
adjectivemasculineSing

sure; certain (confident that something is true)

T'es sûr de ce que tu dis ?

Are you sure about what you're saying?

Synonyms:certain, convaincu, persuadé
2. General
adjectivemasculineSing

safe; secure; reliable (not likely to cause harm or fail)

C'est un endroit sûr, tu ne risques rien.

It's a safe place; you won't be at risk.

Synonyms:sécurisé, fiable, sans danger
sûr - French Definition & Examples