Illinois
noun
Il·li·nois
ˌi-lə-ˈnȯi 
also
-ˈnȯiz
plural Illinois
1
: a confederation of Algonquian-speaking Indigenous peoples of Illinois, Iowa, and Wisconsin
2
: a member of any of the Illinois peoples
3
: the Algonquian language of the Illinois
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“Illinois.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Illinois. Accessed 8 Oct. 2024.
Copy CitationGeographical Definition
Illinois
geographical name
Il·li·nois
ˌi-lə-ˈnȯi,
also
-ˈnȯiz
1
river 273 miles (439 kilometers) long in Illinois flowing southwest into the Mississippi River
2
state in the central part of the U.S. having the Mississippi River as its western boundary and bordering on Lake Michigan in the northeast; capital Springfield area 56,400 square miles (146,640 square kilometers), population 12,830,632
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