Central America is that part of North America on the continental land mass between Colombia and Mexico. This is convenient for [U.S.] Americans that don't care

Central America is that part of North America on the continental land mass between Colombia and Mexico. This is convenient for [U.S.] Americans that don't care to learn the names or relative positions of those countries. I consider the Lucayans, Greater Antilles, and Lesser Antilles to be North American, down to Grenada. Trinidad and Tobago, Aruba, and Curacao are South American. Looking at a map that shows seafloor depth makes this distinction easier, as the latter are clearly on South America's continental shelf. This makes "the Caribbean" that part of North America on the island archipelago. Again, this is convenient for [U.S.] Americans who don't know any of those states and territories other than Puerto Rico--even the other U.S. possessions. Contrary to Wikipedia, "Middle America" is the Great Plains, Near South, and Midwest regions of the U.S., specifically the white, Protestant Christian, middle-class, suburban communities therein. "Mesoamerica" is the northern part of Central America and the southern part of Mexico. We don't talk about Bermuda or Greenland.