Dictionary.com
Thesaurus.com

Illinoisan

American  
[il-uh-noi-uhn, -noi-zuhn] / ˌɪl əˈnɔɪ ən, -ˈnɔɪ zən /
Also Illinoisian.

noun

  1. a native or inhabitant of Illinois.


adjective

  1. of or relating to Illinois or its inhabitants.

Illinoisan British  
/ ˌɪlɪˈnɔɪən, ˌɪlɪˈnɔɪzɪən, ˌɪlɪˈnɔɪən /

noun

  1. a native or inhabitant of Illinois

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. of or relating to Illinois or its inhabitants

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Illinoisan

Illinois + -an

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

What would Durbin’s fellow Illinoisan, Bob “Chicago Pope” Prevost, say about all this?

From Slate • Oct. 4, 2025

The perimeter had been established because the jail was on night shift lockdown status, the Southern Illinoisan reported.

From Seattle Times • Apr. 12, 2022

The Southern Illinoisan reports that the road winding through the Shawnee National Forest will close to vehicles beginning Sunday.

From Washington Times • Aug. 26, 2019

The Southern Illinoisan reports that the 1,200-square-foot facility opens Aug. 16 with an open house at the Student Center.

From Washington Times • Aug. 2, 2019

"Found another place where you will not follow me, eh, old boy!" rattled the Illinoisan, with a reference which the other easily understood.

From The Coward A Novel of Society and the Field in 1863 by Morford, Henry