Capital letter Meaning, Definition & Usage

  1. noun one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis; capitals were kept in the upper half of the type case and so became known as upper-case letters"
    uppercase; upper-case letter; majuscule; capital.
    • printers once kept the type for capitals and for small letters in separate cases

WordNet


Definitions
  1. F, lettre capitale (Print.), a leading or heading letter, used at the beginning of a sentence and as the first letter of certain words, distinguished, for the most part, both by different form and larger size, from the small (lower-case) letters, which form the greater part of common print or writing.

Webster 1913