This is the 275th most frequent French word.
quelque
"Quelque" means "some," "a few," or "about" in English, depending on context.
In this sentence, 'quelque' is used in the compound 'quelque chose', meaning 'something'.
J'ai vu quelque chose d'intéressant aujourd'hui.
I saw something interesting today.
In this case, 'quelque' is conveying the meaning of 'some' in reference to a certain amount of truth.
Il se peut qu'il y ait quelque vérité dans ce qu'il dit.
There might be some truth in what he says.
Here, 'quelque' is used to mean 'some', referring to an indefinite amount of time.