In addition to the seven core vowels, in a number of words of foreign origin (predominantly French, but also German) the mid front rounded vowel (rounded Romanian ; example word: "bleu" 'light blue') and the mid central rounded vowel (rounded Romanian ; example word: "chemin de fer" 'Chemin de Fer') have been preserved, without replacing them with any of the existing phonemes. The borrowed words have become part of the Romanian vocabulary and follow the usual inflexion rules, so that the new vowels, though less common, could be considered as part of the Romanian phoneme set. Many Romanian dictionaries use in their phonetic descriptions to represent both vowels.