Palatalization predominant (but not always recurring) of fricatives /s/ and /z/ in /ʃ/ and /ʒ/ before voiceless (t) and voiced (d) alveolar stops, and also, but less often, before the denti-alveolar lateral approximant (l) and the denti-alveolar nasal (n), like poste[ˈpɔʃti] ("post"), desde[ˈdeʒdi] ("from", "since"), os navios[uʒnaˈviws] ('the ships"), and dois lados[ˈdojʒˈladʊs] ("two sides").
Debuccalization of syllable-final/s/ and /z/ in colloquial speech (in a number of words and with varying frequency according to the place) to the glottal fricatives [h] and [ɦ] (when in the end of words, this only happens if there's another word following it, but if it doesn't, the pronunciations of these consonants are the standard ones), like mesmo[ˈmeɦmʊ] ("same") and eu fiz tudo[ˈewˈfih'tudʊ] (being more common [ˈewˈfiʃ'tudʊ]).
Debuccalization of the letter "v" (normally pronounced as [v]) in colloquial speech to the voiced glottal fricative[ɦ], in some of the verbal forms (those starting with "v") of the verbs "Ir" ("to go"), "Vir" ("to come") and "Ver" ("to see"), like Vamo?[ˈɦɐ̃mʊ̥] or [ˈɦɐ̃m] ("Let's go?"), Tu vem?[ˈtuˈɦẽj̃] ("Are you coming?") and Vai te embora![ˈɦajˈtĩˈbɔ(ː)ɾɐ] ("(You) Go away!").
Voiced glottal fricative (ɦ) and voiceless glottal fricative (h) are present in the sound of the letter "r" (the first between syllables, but never with an "r" starting a non-initial syllable alone, because these do /ɾ/, and the second at the beginning of words or digraph "rr"). None of the two phonemes occur at the end of words. Examples: corda[ˈkɔɦdɐ] ("rope"), rabo[ˈɦabu] ("tail" - also locally in Brazilian Northeast "buttocks") and barragem[baˈɦaʒẽj̃] ("dam"), querer[keˈɾe] ("to want").
Opening of the pre-tonic vowels /e/ and /o/ to /ɛ/ and /ɔ/ most of these syllables with vowels: rebolar[hɛbɔˈla] ("throw away").
This key also serves, for the most part, to the north coast and recifense dialects. But the dialects cited here do not have the phoneme /d͡z/ and /t͡s/, characteristic of the central northeastern dialect. Recifense dialect usually palatalizes fricatives in any syllabic consonant meeting (including the end of words) and not only before /d/ and /t/. Moreover, in certain regions of southeastern of Piauí and Maranhão west coast also a greater or lesser palatalization of fricatives may occur under the influence of Amazonian dialects (northern and Amazon Plateau), and even the absence of such palatalization. That is, in some areas the sound is alveolar (/s/ and /z/), and in others postalveolar /ʃ/ and /ʒ/. In north coast dialect, also virtually no dental stops before /i/, /j/ or /ĩ/, and in its place they use postalveolar affricates (/d͡ʒ/ and /t͡ʃ/). In contrast, the central northeastern dialect has almost exclusive predominance of dental stops before /i/, /j/ or /ĩ/. And the postalveolar affricates are used only in the following cases: in words of foreign origin in the Portuguese language, especially English; in words denoting slang and regionalisms; and phonemes are present in the standard variety of Brazilian Portuguese, are also often in television media to replace the dental stops (though never in common parlance).
1 Only in words of foreign origin in the Portuguese language, in words denoting slang, regionalisms and optionally the grapheme "di" and "ti" that are in post-tonic syllables with rising diphthongs (and never in all locations, depending on local state changes to state where it is spoken dialect), and phonemes are present in the standard variety of Brazilian Portuguese, are also often in television media to replace the dental stops (though never in common parlance).
