May have no audible release in the word-final position. These allophones are more common in North America than Great Britain. Always have a 'masked release' before another plosive or affricate (as in rubbed ), i.e. the release of the first stop is made after the closure of the second stop. This also applies when the following stop is homorganic (articulated in the same place), as in top player. A notable exception to this is Welsh English, where stops are usually released in this environment. The affricates have a mandatory fricative release in all environments. Very often in the United States and Canada, and less frequently in Australia and New Zealand, both can be pronounced as a voiced flap in certain positions: when they come between a preceding stressed vowel (possibly with intervening ) and precede an unstressed vowel or syllabic . Examples include water, bottle, petal, peddle (the last two words sound alike when flapped). The flap may even appear at word boundaries, as in put it on. When the combination appears in such positions, some American speakers pronounce it as a nasalized flap that may become indistinguishable from , so winter may be pronounced similarly or identically to winner . Yod-coalescence is a process that palatalizes the clusters , , and into , , and respectively, frequently occurring with clusters that would be considered to span a syllable boundary. Yod-coalescence in stressed syllables, such as in tune and dune, occurs in Australian, Cockney, Estuary English, Hiberno-English (some speakers), Newfoundland English, South African English, and to a certain extent in New Zealand English and Scottish English (many speakers). This can lead to additional homophony; for instance, dew and due come to be pronounced the same as Jew. In certain varieties—such as Australian English, South African English, and New Zealand English— and in stressed syllables can coalesce into and , respectively. In Australian English for example, assume is pronounced by some speakers. Furthermore, some British, Canadian, American, New Zealand and Australian speakers may change the sound to before , so that a word having a cluster of like in strewn would be pronounced . The postalveolar consonants are strongly labialized: . In addition to , clusters also have affricate-like realizations in certain positions (as in cats, roads, tram, dram, eighth, behind them, cupful, obvious; see also ), but usually only are considered to constitute the monophonemic affricates of English because (among