Sauce

In Australia, ketchup is not ketchup. Well, it is, but that’s not what they call it. Here they call it sauce. Tomato sauce to use the full term. I’m cool with it although it is a little confusing. It isn’t as if ketchup is the only type of sauce. Shouldn’t tomato sauce be for pasta? And if ketchup is tomato sauce, then what do they call tomato sauce for pasta? Maybe they don’t make it to pasta, maybe ketchup is the only sauce worth knowing about down under.