| @NeerlandsHoop: I'll copy from Wikipedia. "When a vowel is followed by another vowel, this combination usually represents a long vowel (aa, ee, eu, ie, oe, oo, uu) or a diphthong (ai, au, ei, ou, ui, aai, eeu, ieu, oei, ooi). When one of these letter combinations should not be pronounced together (phonological hiatus), a trema is placed upon the first vowel of the next syllable [...] For instance, a trema is added in ruïne (ruin) because otherwise ui would be pronounced as a diphthong. It is also added in beëdigen (to swear in) because otherwhise ee would form a long vowel". But, coming from a Dutch native speaker, I'll consider ä, ï, ö and ü as "seldom used" and I'll remove them from the game. Unless other native speakers think differently. |