This is the 1136th most frequent French word.
erreur
Mistake; error.
Here, 'erreur' is used as 'a mistake or error' made during a calculation.
J'ai fait une erreur en calculant le résultat.
I made an error while calculating the result.
In this sentence, 'erreur' refers to a moral or judgmental error, emphasizing the inappropriateness of hasty judgments.
C'est une erreur de juger les gens sans les connaître.
It's a mistake to judge people without knowing them.
In this context, 'erreur' is used in a technical sense to describe a fault leading to malfunction in software.