what's the difference between the de and del?
Is " De" means "of , from, than ,as, by", and "del " means " from the, of the"? right?

Question

Answer

Yes, "del" is the contraction of "de" and "el".

Answer

"De" have more than one meaning.

Ej:

La casa de Andrea. ---> The Andrea's house.
José viene de Bolivia. --> José comes from Bolivia.

And as "Mompers" says, "del" is "de + el".

Example:

Viento del norte = Viento de el norte --> North wind.
Nubes del cielo = Nubes de el cielo ---> Clouds of the sky.