of a word of unvocalized text are treated like consonants with a (see below) in a text that has full diacritics. Here also, the table shows long vowel letters only in isolated form for clarity. Combinations and are always pronounced and respectively. The exception is the suffix in verb endings where is silent, resulting in or . In addition, when transliterating names and loanwords, Arabic language speakers write out most or all the vowels as long ( with , and with , and and with ), meaning it approaches a true alphabet. Diphthongs The diphthongs and are represented in vocalized text as follows: Vowel omission An Arabic syllable can be open (ending with a vowel) or closed (ending with a consonant): open: CV [consonant-vowel] (long or short vowel) closed: CVC (short vowel only) A normal text is composed only of a series of consonants plus vowel-lengthening letters; thus, the word qalb, "heart", is written qlb, and the word qalaba "he turned around", is also written qlb. To write qalaba without this ambiguity, we could indicate that the l is followed by a short a by writing a fatḥah above it. To write qalb, we would instead indicate that the l is followed by no vowel by marking it with a diacritic called sukūn (), like this: . This is one step down from full vocalization, where the vowel after the q would also be indicated by a fatḥah: . The Qurʾān is traditionally written in full vocalization. The long i sound in some editions of the Qur’ān is written with a kasrah followed by a diacritic-less y, and long u by a ḍammah followed by a bare w. In others, these y and w carry a sukūn. Outside of the Qur’ān, the latter convention is extremely rare, to the point that y with sukūn will be unambiguously read as the diphthong , and w with sukūn will be read . For example, the letters can be read like English meel or mail, or (theoretically) also like mayyal or mayil. But if a sukūn is added on the y then the m cannot have a sukūn (because two letters in a row cannot be sukūnated), cannot have a ḍammah (because there is never an uy sound in Arabic unless there is another vowel after the y), and cannot have a kasrah (because kasrah before sukūnated y is never found outside the