Noun illinois has 3 senses

• illinois(n = noun.location) il, land of lincoln, prairie state - a midwestern state in north-central United States; Array
is a part of middle west, midwest, midwestern united states, america, the states, u.s., u.s.a., united states, united states of america, us, usa
is a kind of american state
has parts: cairo, carbondale, champaign, chicago, windy city, decatur, east saint louis, moline, peoria, rockford, rock island, capital of illinois, springfield, urbana, illinois river, little wabash, little wabash river

• illinois(n = noun.person) Array - a member of the Algonquian people formerly of Illinois and regions to the west; Array
is a kind of algonquian, algonquin

• illinois(n = noun.communication) Array - the Algonquian language of the Illinois and Miami; Array
is a kind of algonquian, algonquian language, algonquin