Czech alphabet in the context of "Digraph (orthography)"

Ch is a digraph in the Latin script. It is treated as a letter of its own in the Chamorro, Old Spanish, Czech, Slovak, Igbo, Uzbek, Quechua, Ladin, Guarani, Welsh, Cornish, Breton, Ukrainian Latynka, and Belarusian Łacinka alphabets. Formerly, ch was also considered a separate letter for collation purposes in Modern Spanish, Vietnamese, and sometimes in Polish; now the digraph ch in these languages continues to be used, but it is considered as a sequence of letters and sorted as such.

Gaj's Latin alphabet (Serbo-Croatian: Gajeva latinica / Гајева латиница, pronounced [ɡâːjeva latǐnit͡sa]), also known as abeceda (Serbo-Croatian Cyrillic: абецеда, pronounced [abet͡sěːda]) or gajica (Serbo-Croatian Cyrillic: гајица, pronounced [ɡǎjit͡sa]), is the form of the Latin script used for writing all four standard varieties of Serbo-Croatian: Bosnian, Croatian, Montenegrin, and Serbian. It contains 27 individual letters and 3 digraphs. Each letter (including digraphs) represents one Serbo-Croatian phoneme, yielding a highly phonemic orthography. It closely corresponds to the Serbian Cyrillic alphabet.

The alphabet was initially devised by Croatian linguist Ljudevit Gaj in 1835 during the Illyrian movement in ethnically Croatian parts of the Austrian Empire. It was largely based on Jan Hus's Czech alphabet and was meant to serve as a unified orthography for three Croat-populated kingdoms within the Austrian Empire at the time, namely Croatia, Dalmatia and Slavonia, and their three dialect groups, Kajkavian, Chakavian and Shtokavian, which historically utilized different spelling rules. The alphabet's final form was defined in the late 19th century.

The Belarusian Latin alphabet or Łacinka (from Belarusian: лацінка, BGN/PCGN: latsinka, IPA: [laˈt͡sʲinka]) for the Latin script in general is the Latin script as used to write Belarusian. It is similar to the Sorbian alphabet and incorporates features of the Polish and Czech alphabets. Today, Belarusian most commonly uses the Cyrillic alphabet.

The Sorbian alphabet is based on the ISO basic Latin alphabet but uses diacritics such as the acute accent and the caron, making it similar to the Czech and Polish alphabets. (This mixture is also found in the Belarusian Latin alphabet.) The standard character encoding for the Sorbian alphabet is ISO 8859-2 (Latin-2).

The alphabet is used for the Sorbian languages, although some letters are used in only one of the two languages (Upper Sorbian and Lower Sorbian).