Capitalization

thumb|A historiated initial (the letter O) from an illuminated manuscript|alt=A large letter O in a frame. At the centre of the letter, there is an illustration of Moses receiving the Ten Commandments on tablets of stone.

term for the notation where uppercase letters are used within words for specific purposes, such as making word boundaries visible after concatenating multiple words into a single string, with the first word's initial letter in lowercase

computer key

defines whether uppercase and lowercase letters are treated as distinct

typeset that contains characters that resemble uppercase letters

distinctive property of a letter in a bicameral alphabet (most notably the Latin, Greek, or Cyrillic ones); piece of information whether a letter grapheme is taller "upper case" or lower "lower case"

The general term for the notation where multiple words are concatenated with underscores ("_") for specific purposes, such as making word boundaries more visible after combining multiple words into a single string, with all letters in lowercase

text containing only uppercase letters or manner to write using only uppercase (capital) letters (due to need for emphasis, technical limits or any other reason)

ancient Roman style of writing

right|thumb|The capital letter "A" in the Latin alphabet, followed by its lowercase equivalent, in sans serif and [[serif typefaces respectively|class=skin-invert-image]]

argument on capitalizing the "I" in the work title

A capitonym is a word that changes its meaning (and sometimes pronunciation) when it is capitalized; the capitalization usually applies due to one form being a proper noun or eponym. It is a portmanteau of the word capital with the suffix -onym. A capitonym is a form of homograph and – when the two forms are pronounced differently – is also a form of heteronym. In situations where both words should be capitalized (such as the beginning of a sentence), there will be nothing to distinguish between them except the context in which they are used.