in chemistry, it would signify some kind of hydrogen/carbon bond
eg: Methane - CH4
$CH or CH$
Ch can stand for channel as in television channel.
No separate symbol, just the abbreviation "ch".
CH is the international badge for Switzerland, or Helvetia.
Switzerland
Evanescence has never stated what their symbol stand for.
Chromium is denoted by the symbol Cr. It is a chemical element with atomic number 24.
I is the chemical symbol for iodine.
It is country domain, like "us" is for United States, "CH" is for Switzerland
I is the chemical symbol for iodine.
It is the gay pride symbol
Danzig helvetia