Definition of upper case in English:

upper case

noun

mass noun
  • Capital letters as opposed to small letters (lower case)

    ‘the keywords must be in upper case’
    as modifier ‘upper-case letters’
    • ‘But as the k was typed in lower case, it was mysteriously replaced by an uppercase letter.’
    • ‘X's and O's were upper-case letters, 4.0 mm high and 2.0 mm wide.’
    • ‘There are warnings against the use of all upper-case text as this impacts negatively on readability.’
    • ‘The title page of the book has its name printed in upper case, as was the fashion at the time, but it is an achievement worth capital letters.’
    • ‘It's especially important when going over the username and password, letter by letter, number by number, upper case by lower case - because, as the user manual says, ‘It's vital to type in the correct username and password’.’
    • ‘You should have passwords that are at least eight characters long - consisting of a mixture of numbers, upper case and lower case letters.’
    • ‘As an editor, this happens to drive me crazy (along with the lack of upper-case letters where one would normally expect them).’
    • ‘Letters were presented in upper case, white Arial font on a black background.’
    • ‘The game can be used to reinforce number recognition, letter recognition, the difference between upper case and lower case letters, letter sounds, colors, etc.’
    • ‘Often in fine but upper-case print, most preprinted prescription labels include the words.’
    • ‘The specification sets out things such as standard data locations, standard fonts, upper case lettering, and types of human-readable data.’
    • ‘And on that note, I give you the lovely e-mail I received this evening from ‘Greg A.'. At least he avoided upper-case type.’
    • ‘They might not know their upper-case letters from their lower, but today's online activists certainly know how to disrupt the enemy.’
    • ‘The test selected requires the child to recognize whether isolated upper case letters and numerals are correctly oriented, and measures memory for the correct visual form of letters and numerals.’
    • ‘Naturally my eye was drawn to this word, 5 cm long and 1.5 cm high, in red upper case letters.’
    • ‘She's always liked us to read to her, and she's been practising her upper-case letters and trying to figure out how to spell words for a long time, but reading stuff she didn't already know frustrated her.’
    • ‘The first letter of this code is upper case and the second, if present, is lower case.’
    • ‘To keep things simple, the file uses only upper case letters, digits and punctuation marks, and does not include spaces.’
    upper-case, block
    View synonyms

Origin

Referring originally to two type cases positioned on an angled stand, the case containing the capital letters being higher and further away from the compositor.

Pronunciation

upper case