i wanna ask something that is what is meanning of symbol?

symbol is mark or character used as conventional representation of an objects, phrases etc.

symbol can be said as a sign that shows a certain sign and it has a meaning. And how we know the meaning, it depends how the symbols look like.

the simple example of symbols is your keyboards in your handphone.
(a-z), they are included into symbols.
and actually, so many symbols than we can find around us.

I dont know the name of study of it, but if you ever watched De Davinci Code, I think you will understand.

#it is just my opinion