Karelian alphabet are from the ISO basic Latin alphabet, five are derived from basic Latin letters by the addition of diacritical marks, and the final character is the apostrophe, which signifies palatalization of the preceding sound. The entire range of sounds of native Karelian words is intended to be represented by this set of characters. This unified alphabet was approved in 2007 as a replacement for the separate Olonets Karelian and Karelian Proper alphabets. The letters Ä and Ö are vowels which, unlike the German umlauts, are considered to be distinct and are alphabetized separately from the corresponding vowels without the umlauts.
Alphabet abjad, but has syllabic letters for . (These are the only time vowels are indicated.) Cyrillic is basically a true alphabet, but has syllabic letters for (я, е, ю); Coptic has a letter for . Devanagari is typically an abugida augmented with dedicated letters for initial vowels, though some traditions use अ as a zero consonant as the graphic base for such vowels. The boundaries between the three types of segmental scripts are not always clear-cut. For example, Sorani Kurdish is written in the Arabic script, which is normally an abjad. However, in Kurdish, writing the vowels is mandatory, and