Is there any difference between "fool" and "silly" in meaning?
For example;
Fulano is a fool person.
Fulano is a silly person.
Stop being fool.
Stop being silly.

thanks

Question

Is there any difference between "fool" and "silly" in meaning?
For example;
Fulano is a fool person.
Fulano is a silly person.
Stop being fool.
Stop being silly.

thanks

Answer

"Fool" is a noun or a verb.  You mean "foolish", ie. Fulano is a foolish person; Stop being foolish.

Well, yes, there is a difference. "Silly" can mean comical and light-hearted.  "Foolish" can mean stupid or gullible.

http://www.thefreedictionary.com/foolish
http://www.thefreedictionary.com/silly

Even though there are a couple of times you could use one or the other (eg. foolish/silly = "idiotic"), I suggest you look at the differences, not the similarities.