chicagoland

As a noun taxonomy

is the science or the technique used to make a classification.

As a proper noun chicagoland is

the metropolitan area of chicago, including parts of illinois, indiana and wisconsin.

As proper nouns the difference between wisconsin and chicagoland

is that wisconsin is a capital: madison largest city: milwaukee while chicagoland is the metropolitan area of chicago, including parts of illinois, indiana and wisconsin.

As proper nouns the difference between indiana and chicagoland

is that indiana is a {{USstate}} Capital and largest city: Indianapolis while Chicagoland is the metropolitan area of Chicago, including parts of Illinois, Indiana, and Wisconsin.

As proper nouns the difference between illinois and chicagoland

is that illinois is a capital: springfield largest city: chicago while chicagoland is the metropolitan area of chicago, including parts of illinois, indiana and wisconsin.

As an adjective illinois

is of or relating to the (miami-illinois language).

As a noun illinois

is any of a tribe of native americans who formerly occupied the region between the wabash and mississippi rivers.