upper case

American  

noun

Printing.

1. case28

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upper case British  

noun

1. the top half of a compositor's type case in which capital letters, reference marks, and accents are kept

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adjective

1. of or relating to capital letters kept in this case and used in the setting or production of printed or typed matter

verb

1. (tr) to print with upper-case letters; capitalize

Etymology

Origin of upper case

First recorded in 1675–85

Example Sentences

Amino acids are represented by a single upper case letter or a three-letter abbreviation.

From Textbooks • Jun. 9, 2022

When choosing a password, we're generally advised to use one upper case letter, an unusual character and a number.

From BBC • May 6, 2020

The first lady’s Twitter account, @MELANIATRUMP, has her name and her handle in upper case.

From The Guardian • Aug. 21, 2018

Brogan: As opposed to the thing, which is something that we haven’t talked about before, but is quite common in comics, which is that everything is upper case.

From Slate • Nov. 1, 2017

There’s no choice involved: the letter has to be upper case.

From "The Invention of Science" by David Wootton