languages like Irish and Welsh, whereby unwritten (but historical) final consonants affect the initial consonant of the following word. Ambisyllabicity There can be disagreement about the location of some divisions between syllables in spoken language. The problems of dealing with such cases have been most commonly discussed with relation to English. In the case of a word such as hurry, the division may be or , neither of which seems a satisfactory analysis for a non-rhotic accent such as RP (British English): results in a syllable-final , which is not normally found, while gives a syllable-final short stressed vowel, which is also non-occurring. Arguments can be made in favour of one solution or the other: A general rule has been proposed that states that "Subject to certain conditions ..., consonants are syllabified with the more strongly stressed of two flanking syllables", while many other phonologists prefer to divide syllables with the consonant or consonants attached to the following syllable wherever possible. However, an alternative that has received some support is to treat an intervocalic consonant as ambisyllabic, i.e. belonging both to the preceding and to the following syllable: . This is discussed in more detail in . Onset The onset (also known as anlaut) is the consonant sound or sounds at the beginning of a syllable, occurring before the nucleus. Most syllables have an onset. Syllables without an onset may be said to have an empty or zero onset – that is, nothing where the onset would be. Onset cluster Some languages restrict onsets to be only a single consonant, while others allow multiconsonant onsets according to various rules. For example, in English, onsets such as pr-, pl- and tr- are possible but tl- is not, and sk- is possible but ks- is not. In Greek, however, both ks- and tl- are possible onsets, while contrarily in Classical Arabic no multiconsonant onsets are allowed at all. Null onset Some languages forbid null onsets. In these languages, words beginning in a vowel, like the English word at, are impossible. This is less strange than it may appear at first, as most such languages allow syllables to begin with a phonemic glottal stop (the sound in the middle of English uh-oh or, in some dialects, the double T in button, represented in the IPA as ). In English, a word that begins with a vowel may be pronounced with an epenthetic glottal