1A river port and industrial city in central Illinois, on the Illinois River; population 114,114 (est. 2008). It developed around a fort built by the French in 1680.
2A city in southwest central Arizona, a northwestern suburb of Phoenix; population 157,960 (est. 2008)
Named after the American Indians who occupied the area (in sense 1) when the French arrived.
We take a look at several popular, though confusing, punctuation marks.