uppercase

/ˌʌpər keɪs/

/ˈʌpekeɪs/

Uppercase letters are capitalized, like the uppercase "T" in "Texas" and the uppercase "B" and "R" in "Betsy Ross."

You can also call uppercase letters capitals, caps, or if you want to be really formal, majuscules. In English, we use uppercase for so-called proper nouns, things like people's names (like Ruth Bader Ginsberg), place names (like Saskatchewan), formal titles (like Dr. Patel), and the the names of movies and books (like Pride and Prejudice). The first word in each sentence also begins with an uppercase letter. These letters are slightly taller than their lowercase counterparts.

Definitions of uppercase

1. adjective

   relating to capital letters which were kept in the top half of a compositor's type case
   “uppercase letters”

   synonyms:

   capital, great, majuscule

   uppercase

   majuscule

   of or relating to a style of writing characterized by somewhat rounded capital letters; 4th to 8th centuries

   antonyms:

   lowercase

   relating to small (not capitalized) letters that were kept in the lower half of a compositor's type case

   little, miniscule, minuscule, small

   lowercase

   miniscule, minuscular, minuscule

   of or relating to a small cursive script developed from uncial; 7th to 9th centuries
2. noun

   one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis
   synonyms: capital, capital letter, majuscule, upper-case letter

   antonyms:

   lowercase

   the characters that were once kept in bottom half of a compositor's type case

   types:

   small cap, small capital

   a character having the form of an upper-case letter but the same height as lower-case letters

   type of:

   character, grapheme, graphic symbol

   a written symbol that is used to represent speech