What is the Australian word for lass?

There isn't a specific Australian word for "lass" that is universally used. While "lass" itself is sometimes used in Australia, it's more common in British English.

Here are some informal Australian terms you could use, depending on the context:

* Sheila: This is a very common term for a woman, often used in a friendly or affectionate way. It can be considered a bit old-fashioned by some, but it's still widely understood.

* Bird: This is a slang term for a woman, similar to "chick" or "girl" in other English-speaking countries.

* Broad: Another slang term for a woman, often used in a casual or humorous way.

* Girl: This is a more general term that is widely used.

It's worth noting that the specific word you choose will depend on the context and your relationship with the person you are referring to. Some of these terms can be considered rude or offensive depending on the situation, so it's best to be aware of the context and the audience when using them.