(from з ) and ӵ (from ч ). When distinction is important, Ḧ and ẍ are used for representing and in the Kurdish Kurmanji alphabet (which are otherwise represented by "h" and "x"). These sounds are borrowed from Arabic. Ẅ and ÿ: Ÿ is generally a vowel, but it is used as the (semi-vowel) consonant (a without the use of the lips) in Tlingit. This sound is also found in Coast Tsimshian, where it is written ẅ. A number of languages in Vanuatu use double dots on consonants, to represent linguolabial (or "apicolabial") phonemes in their orthography. Thus Araki contrasts bilabial p with linguolabial p̈ ; bilabial m with linguolabial m̈ ; and bilabial v with linguolabial v̈ . Seneca uses for . In Arabic the letter ẗ is used in the ISO 233 transliteration for the tāʾ marbūṭah [ة], used to mark feminine gender in nouns and adjectives. Syriac uses a two dots above a letter, called Siyame, to indicate that the word should be understood as plural. For instance, () means "house", while () means "houses". The sign is used especially when no vowel marks are present, which could differentiate between the two forms. Although the origin of the Siyame is different from that of the diaeresis sign, in modern computer systems both are represented by the same Unicode character. This, however, often leads to wrong rendering of the Syriac text. The N'Ko script, used to write the Mandé languages of West Africa uses a two-dot diacritic (among others) to represent non-native sounds. The dots are slightly larger than those used for diaeresis or umlaut. Diacritic underneath The IPA specifies a "subscript umlaut", for example Hindi "potter"; the ALA-LC romanization system provides for its use and is one of the main schemes to romanize Persian (for example, rendering as ). The notation was used to write some Asian languages in Latin script, for example Red Karen. Computer encodings In Unicode Character encoding generally treats the umlaut and the diaeresis as the same diacritic mark. Unicode refers to both as diareses without making any distinction, although the term itself has a more precise literary meaning. For example, represents both a-umlaut and a-diaeresis, while similar codes are used to represent all such cases. Unicode encodes a number of cases of "letter with a two dots diacritic" as precomposed characters and these are displayed above. (Unicode uses the term "Diaeresis" for