letter case
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"
alternating caps
form of text notation in which the capitalization of letters varies by some pattern or arbitrarily, e.g. “aLtErNaTiNg CaPs”
title case
style of capitalization used for rendering the titles of published works or works of art in English: all words are front-capitalized except for minor words -- articles, short prepositions, and some conjunctions but it varies
camel case
The general 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
uppercase letter
type of letter in some alphabets used for particular purposes
lowercase letter
type of letters in some alphabets predominantly used in text (except in particular situations)
snake 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
lowercase
letter which is smaller than the capital
all caps
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)