noun
capitalization
kap-ih-tuh-luh-ZAY-shun/ˌkæpɪtələˈzeɪʃn/
The use of uppercase letters in writing.
The second sentence corrects the first sentence's capitalization.

Etymology
Capital here names an uppercase letter. The endings turn that letter-name into an action, capitalize, and then into the name of the practice of writing or printing with uppercase letters.
In context
we are going to be talking about how to use proper capitalization and punctuation in our writing now i know your teachers have told you since kindergarten your sentence always begins with a capital letter
More examples
- Sentence capitalization requires an initial capital letter.
- Inconsistent capitalization made the list look careless.
- The style guide explained capitalization of official names.
Forms
capitalization
capitalize verb — write with a capital letter
Similar words
- uppercase
- Uppercase describes the letters; capitalization is their use according to writing conventions.
- punctuation
- Punctuation uses marks to organize writing; capitalization changes letter case.