Comma certain homonyms. The comma therefore functions as a silent letter in a handful of Greek words, principally distinguishing ("ó,ti", "whatever") from ("óti", "that"). The enumeration or ideographic comma——is used in Chinese, Japanese punctuation, and somewhat in Korean punctuation. In the People's Republic of China and in North/South Korea, this comma ( , , "dùnhào") is usually used only to separate items in lists, while in Japan it is the more common form of comma (, "tōten", "clause mark"). In documents that mix Japanese and Latin scripts, the full-width comma () is used; this is the standard form of comma (
Comma , , "dòuhào") in China. Since East Asian typography permits commas to join clauses dealing with certain topics or lines of thought, commas may separate subjects and predicates and constructions that would be considered a "comma splice" in English are acceptable and commonly encountered. Korean punctuation uses both commas and interpuncts for lists. In Unicode 5.2.0 "numbers with commas" ( through ) were added to the Enclosed Alphanumeric Supplement block for compatibility with the ARIB STD B24 character set. The comma in the Arabic script (used by Arabic, Urdu, and Persian, etc.) is inverted, upside-down: " (), in order to