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"
en-US/ˈlɛtɚ ˈkeɪs/
en-GB/ˈlɛtə ˈkeɪs/
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"