Letter case
（重定向自Sentence case）
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![Divided upper and lower type cases for movable type](/Images/godic/202502/10/Upper_case_and_lower_case_types1544.jpg")
![Williamsburg 18th-century press letters](/Images/godic/202502/10/UPPER_CASE_-_lower_case1544.jpg")
![Alternating all-caps and headline styles at the start of a New York Times report published in November 1919. (The event reported is Arthur Eddington's test of Einstein's theory of general relativity.)](/Images/godic/202502/10/Headline1544.png")
In orthography and typography, letter case (or just case) is the distinction between the letters that are in larger upper case (also capital letters, capitals, caps, large letters, or more formally majuscule, see Terminology) and smaller lower case (also small letters, or more formally minuscule, see Terminology) in the written representation of certain languages. Here is a comparison of the upper and lower case versions of each letter included in the English alphabet (the exact representation will vary according to the font used):