'upper-case letter' definitions:

noun

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" [syn: capital, capital letter, uppercase, upper-case letter, majuscule] [ant: lower-case letter, lowercase, minuscule, small letter]