In typography, all caps refers to text or a font in which all letters are capital letters, for example: "THIS TEXT IS IN ALL CAPS". All caps may be used for emphasis. They are commonly seen in legal documents, the titles on book covers, in advertisements and in newspaper headlines. Short strings of words in capital letters appear bolder and "louder" than mixed case, and this is sometimes referred to as "screaming" or "shouting". All caps can also be used to indicate that a given word is an acronym.
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