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A letter written or printed in a size larger than and often in a form differing from its corresponding lowercase letter; an uppercase letter.
a letter of the alphabet that usu. differs from its corresponding lowercase letter in form and height, as A, B, Q, and R as distinguished from a, b, q, and r.
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|Noun||1.||capital letter - one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis; "printers once kept the type for capitals and for small letters in separate cases; capitals were kept in the upper half of the type case and so became known as upper-case letters"|
grapheme, graphic symbol, character - a written symbol that is used to represent speech; "the Greek alphabet has 24 characters"