uppercase 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"
   capital letter; upper-case letter; majuscule; capital.
   
   • printers once kept the type for capitals and for small letters in separate cases
2. adjective relating to capital letters which were kept in the top half of a compositor's type case; X and Y and Z etc"
   
   • uppercase letters

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