Just for fun...
Super
Walmart = oversized grocery store with Walmart stuff too.
Super Target = Target PLUS grocery store, typically not as oversized as Super Walmart.
To make things more interesting.. Target does have a line of stores called Target Greatland = bigger Target, carries more of each product (but no groceries)
I know Kmart has some distinctions of Big K and neighborhood Kmart.. but generally they don't have the ginormous grocery area. Though I believe they did try a test market of a Kmart grocery type, in southern states???
OHHHHH and there are sub divisions of Walmart too, "neighborhood Walmart center" typically not open 24 hours, may have more of a grocery area, more selective of what they carry in the store depending on demographics.