| Noun | 1. | upper case - one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis; "printers once kept the type for capitals and for small letters in separate cases; capitals were kept in the upper half of the type case and so became known as upper-case letters"small capital, small cap - a character having the form of an upper-case letter but the same height as lower-case letters | |