What is capital letter?

Answer 1

A capital letter is an alphabet letter that is in upper case - A,B,C, and so on up to Z. Upper case letters are sometimes termed, block capitals, or block letters. Lower case letters are a,b,c, and so on up to z.

Answer 2

A capital letter, also known as an uppercase letter, is a letter of the alphabet that is written or printed in a larger form than its lowercase counterpart. Capital letters are typically used at the beginning of sentences, proper nouns, and titles.

Answer 3

Also known as upper case
A B C D and so on
Lower case is a b c d and so on