Donc Definition: (conjunction) so, therefore

J'ai déjà mangé, donc je vais partir - I've already eaten, so I'm going to leave.

C'est donc fini ? - So it's finished?

dis donc / dites donc - I say, how about that

Parce que is a subordinating conjunction and can begin a sentence. Parce que introduces a cause, explanation, or motive - it explains why something is done.

Je ne suis pas venu parce que mon fils est malade.
I didn't come because my son is sick.

Parce qu'il n'a pas d'argent, il ne peut pas venir.
Because he doesn't have any money, he can't come.

"Donc" means therefore or so.

"Parce que" means because.

donc its like Well in english.

and parce que mean because