Unicase

A unicase or unicameral alphabet is one that has no case for its letters. Tamil, Arabic, Old Hungarian, Hebrew, Georgian and Hangul are unicase alphabets, while (modern) Latin, Greek, Cyrillic and Armenian have two cases for each letter, e.g., B/b, Β/β, Б/б, Բ/բ. Rules for case usage vary — apart from the general rule of capitalizing the first letter of proper nouns, each language has its own rules, e.g., English "Tuesday" vs. French "mardi" and the German rule of capitalizing the first letter of all nouns.