Australian dollar
Essentially, yes. One is standard eBay, the other is eBay Australia.
Au is the symbol for gold
Au is the chemical symbol for gold.
to you
The creator of all of the eBay sites, including the Australian site, is Pierre Omidyar. Omidyar founded eBay in 1995; it was first known as AuctionWeb.
it means off. for example: i switched the light offout, out of, from
"J'arriverai au ..." mean "I will arrive at / to ..." in English.
Au revoir means "goodbye" in French.
Value of Ridgway Homemaker plateThey sell for about £10 GBP on eBay (about $25 AU) but I recently bought one for $11 AU
Sec is the French word for 'dry'. 'Au sec' may mean 'in a dry place', for example.
Au can refer to gold, Australia, or Austria, depending on context.