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.
Words nearby capital letter
Also called capital.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for capital letter
If the capital-letter be retained where a prefix is put to a proper name, the hyphen is obviously necessary."Stops"|Paul Allardyce