mater lectionis aleph letters into silent ones (see Canaanite shift). Due to that sound change, in Hebrew language, there are only two kinds of aleph - the glottal stop (/ʔ/) and the silent one, while in Arabic language all three kinds still exist. The silent Arabic alif is marked with a wasla sign above it (see picture), in order to differentiate it from the other kinds of alifs. An Arabic alif turns silent, if it fulfils three conditions: it must be in a beginning of a word, the word must not be the first one of the sentence, and the word must belong to one of the following groups: Verbs that start with the prefix "ʔi-", due to their conjugation and derived stem. Ten specific nouns that begin with "ʔ":اسم, است, ابن/ابنة, اثنان/اثنتان, امرؤ/امرأة, اَيمن الله/اَيْم الله. Some of these words have a Hebrew word equivalent, and that equivalent had totally lost the beginning aleph. Examples: اسم (ʔism), meaning "a name" (in Maltese the word isem), sounds like "ism" if it is in the beginning of the sentence and "sm" if not; its Hebrew equivalent is שֵׁם (shem). إبن (ʔibn) (in Maltese the word iben), meaning "a son", sounds like "ibn" if it is in the beginning of the sentence and "bn" if not; its Hebrew equivalent is בֵּן (ben), in Maltese bin. The alif of the word اَل (ʔal), meaning "the" - sounds like "al" if it is in the beginning of the sentence and "l" if not. Besides the alif of the Arabic word ال (ʔal, meaning "the"), its lām (the letter L) can also get silent. It gets silent if the noun that word is related to, starts with a "sun letter". A sun letter is a letter that indicates a consonant that is produced by stopping the air in the front part of the mouth (not including the consonant M). The Hebrew equivalent to the Arabic word ال (ʔal, meaning "the") had totally lost its L. In Maltese għ can be silent e.g. għar - meaning cave - and pronounced "ahr", or a voiced HH if it is followed by the or if it is at the end of a word e.g. qlugħ (q-glottal stop: ). Uralic languages The Estonian and Finnish languages use double letters for long vowels and geminate consonants. Turkish In the Turkish language, often has no sound of its own, but lengthens