This is the 767th most frequent French word.
faible
Weak.
Here, 'faible' is describing a physical condition of lacking strength.
Je me sens faible après avoir couru un marathon.
I feel weak after running a marathon.
Here, 'faible' is used to evaluate the quality or intensity of performance.
Sa performance au test était faible, mais il peut s'améliorer.
His performance on the test was weak, but he can improve.
In this sentence, 'faible' is utilized to describe the low volume or softness of the voice.