Jebero language
Jebero (Chebero, Xebero, Xihuila) is a moribund Amazonian language spoken by the Jebero people of Jeberos, Peru. It is spoken by only a small number of older adults and belongs to the Cahuapanan family together with Chayahuita.
Phonology
Vowels

- /i/ varies between close front unrounded [i], near-close front unrounded [i̞] and close-mid front unrounded [e].
- /u/ varies between near-close near-front rounded [ʊ] and close-mid back weakly rounded [o̜], with the latter realization being the most usual.
- /ɘ/ varies between mid near-front unrounded [ɛ̽] and close-mid central unrounded [ɘ].
- /ɘ/ is shorter than the other vowels, particularly between voiceless consonants.
- The sequence /ɘn/ is sometimes realized as a syllabic [n̩].
- /a/ varies between open central unrounded [ä] and near-open retracted front [æ̠]. The vowel chart in Valenzuela & Gussenhoven (2013) puts /a/ in the near-open central position [ɐ].
- In closed syllables, /a/ is realized as open-mid central unrounded [ɜ].
Consonants
- /m, p/ are bilabial, whereas /w/ is labialized velar.
- /tʃ/ is an affricate, rather than a plosive. It has nevertheless been placed in the table in that manner to save space.
- /n, t, ð, l/ are laminal denti-alveolar [n̪, t̪, ð̪, l̪].
- In the syllable coda, /n/ is realized with a wider contact, maximally dentoalveolo-velar [n̪͡ŋ].
- After /u, a/, the denti-alveolar contact is often not made, which makes /n/ sound more like a velar nasal [ŋ].
- /ð/ may sometimes sound as if it were a lateral consonant, but it is never realized as lateral.
- /ɲ, ʎ/ are dentoalveolo-palatal [ɲ̪, ʎ̪].
- /ʎ/ is sometimes realized as a weak fricative [ʎ̪˔].
- /h/ occurs only in the affirmative interjection [ahã].
- /r/ is realized as a flap [ɾ] in the syllable onset and as a trill [r] in the syllable coda.
- /ˀr/ is a glottalized flap [ˀɾ]. Intervocalically, it is realized as a sequence [ɾʔ].