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capital letter

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noun
  1. a letter of the alphabet that usually differs from its corresponding lowercase letter in form and height, as A, B, Q, and R as distinguished from a, b, q, and r: used as the initial letter of a proper name, the first word of a sentence, etc.
Also called capital.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for capital letter

Historical Examples

  • If the capital-letter be retained where a prefix is put to a proper name, the hyphen is obviously necessary.

    "Stops"</p>

    Paul Allardyce


Word Origin and History for capital letter

n.

late 14c.; see capital (adj.). So called because it is at the "head" of a sentence or word.

Online Etymology Dictionary, © 2010 Douglas Harper

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