Icebox vs. fridge? Refrigerator here
Ice chest vs. cooler? both ~~ the deliniation around here... if it is a big one it is called an ice chest, if it is small and compact it is a cooler
Tissue vs. Kleenex? kleenex
Basement vs. cellar? these are two different entities here... basement is below your house and cellar is outside not connected to your home.
Couch vs. sofa? couch
Creek vs. crick? creek
Over there vs. yonder? LOL, actually I say "over yonder" LMAO
constantly vs. steady? constantly
getting ready to vs. fixin' to? either
carry a bag vs. pack a bag (pack means carry in E. KY) : either
urinate vs. make water (more E. KY nonsense) : go pee, to be quite crude about it
dinner vs. supper : supper
watch TV vs. look at TV (soooo Texan) we don't watch tv around here... we watch the shows
call the cops/police vs. call the law: call the cops
Not to mention how we pronounce things differently all over the US (and abroad) -
"puh-leese" vs. "POH-leese" (all one syllable)
"conner" vs. "corner" (corner)
"corter" vs. "quarter" (quarter)
and spelling?
theater vs. theatre (true dramatists spell it theatre

color vs. colour (color)
Some more...
*If something is crooked, we say it is "squee squad".
*Also, I notice I say convenience store instead of gas station like everyone else around here.