- The definition of uppercase is something written or printed with capital letters.
An example of uppercase used as an adjective is the phrase uppercase letter, which means the first letter of a person's name.
Wooden uppercase letters.
uppercase definition by Webster's New World
Origin: from their being kept in the upper of two cases of type
uppercase definition by American Heritage Dictionary
adjective Abbr. uc or UC
- To put (type or text) in uppercase letters.
- To begin (a word) with an uppercase letter.
- upˈper·caseˈ noun