Im pretty sure that all brokers will have this information readily available for you on their website in an easy to read and understand table (along with all other trading symbols and pairs that they offer)
I’ve seen it numerous times - go and take a look
Or to some odd metal, perhaps? XAU = gold (“Au” is the symbol for the [I][U]element[/U][/I] gold, from the Latin “aurum”). Not [I]exactly[/I] a currency …
An [I]ounce[/I], I hope, rather than just a gram??? :o
I was earlier actually wondering why this weird symbol - then remembered the table and the elemental symbol for gold - then I started exploring further.