add on code
There is no way to know what someone meant by putting a "3" before an area code.
That symbol, when placed before or after a date, signifies that it was after the year 0. Usually if there is no abbreviation before or after a date, it is assumed to be after the year 0 as well. BC is the opposite, meaning that the date was before the year 0.
In music, the term "accidental" refers to a symbol placed before a note to indicate a temporary change in pitch, such as a sharp, flat, or natural.
secondary
The "x" symbol on guitar tabs indicates that you should mute or not play the string that the "x" is placed on.
The @ symbol you mean? If you want to tag them in it, yes.
The dieresis is the symbol placed over a letter that is most commonly a vowel. When that letter is an i or a j, the diacritic replaces the tittle: i.
kaycholasham is the symbol of a certain holiday. kaycholasham is best understood if you say the holiday in which you mean the symbol of before or after you say kaycholasham.
It doesn't really mean anything it's just a unique identification code!
It means that it is an add-on code.
Never heard it before? Where did you see one?
The symbol "x" before a note in music notation means to play or sing the note as a staccato, which is short and detached.