Lowercase

Unicode Version 18.0

Lowercase is a binary character property that identifies letters with a specific typographic form, typically smaller than their uppercase counterparts, such as 'a', 'b', and 'z'. It applies to characters in scripts like Latin, Greek, Cyrillic, and Armenian, but also includes certain modifier letters and phonetic symbols that are inherently lowercase in shape. The property is used for case mapping, case-insensitive matching, and text transformations like lowercasing, and it operates independently of context, meaning a character is either always lowercase or never lowercase, regardless of word position or surrounding characters. It excludes titlecase characters, which have their own distinct property, and does not include numerals or punctuation.