The origin of the terms uppercase and lowercase might seem pretty self-explanatory.Upper and lower must be references to the height of the letters, and the use of case is presumably an offshoot of ...

And nothing shows love like a chew toy or capital letter. However, the basic rule on dog breeds is that if they include a proper noun, that word is uppercase. Everything else is lowercase.

DEAR DR. ROACH: I have never given much thought to the spellings of various medications. Why do some have an uppercase first letter while others do not? Patent versus generic maybe? -- C.A.W ...

A recent directive issued by the U.S. Navy was transmitted in the customary format, using all uppercase letters. Sailors, it said, are: "AUTHORIZED TO USE STANDARD, MIXED-CASE CHARACTERS IN THE ...