1.  australia(n = noun.location) commonwealth of australia - a nation occupying the whole of the Australian continent; Aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony;
is a kind of country, land, state
is a part of australia
has parts: australian capital, canberra, capital of australia, australian state, queensland, new south wales, victoria, tasmania, south australia, western australia, northern territory, norfolk island, nullarbor plain, gibson desert, great sandy desert, great victoria desert, simpson desert, australian alps, cape york, cape york peninsula, eyre, lake eyre, eyre peninsula, great australian bight, great barrier reef, eastern highlands, great dividing range, carpentaria, gulf of carpentaria, murray, murray river, murrumbidgee, murrumbidgee river, namoi, namoi river
is a member of british commonwealth, commonwealth of nations, british empire
Derived form adjective australian₁

2.  australia(n = noun.object) - the smallest continent; between the South Pacific and the Indian Ocean;
is a kind of continent
is a part of eastern hemisphere, orient, southern hemisphere
has parts: australia, commonwealth of australia, tasmania, australian desert, great australian desert, australian alps, cape york, cape york peninsula, darling, darling river, eyre, lake eyre, eyre peninsula, great australian bight, great barrier reef, eastern highlands, great dividing range, moreton bay, murray, murray river, murrumbidgee, murrumbidgee river
has particulars: carpentaria, gulf of carpentaria

capital of australia, commonwealth of australia, south australia, western australia, western australia coral pea