This is the 7862nd most frequent French word.
sicura
"Sicura" is not a French word; it is Italian, meaning "safe" or "secure" in English.
Here, 'sicura' is used in the context of certainty or being sure.
Marie est sicura de sa décision.
Marie is sure of her decision.
In this sentence, 'sicura' is used to express that the lock is safe or secure.
La serrure de cette porte est sicura.
The lock of this door is secure.
Here, 'sicura' conveys the idea of being confident or self-assured.