Glottalization

The timing also varies, from a simultaneous single segment [d̰] to an onset or coda such as [ˀd] or [dˀ] to a sequence such as [ʔd] or [dʔ].

In these dialects, the glottal stop is an allophone of /p/, /t/ and /k/ word-finally, and when followed by an unstressed vowel (including syllabic /l/ /m/ and /n/) in a post-stress syllable.

Other examples include "city" [ˈsɪʔi], "bottle" [ˈbɒʔo], "Britain" [ˈbɹɪʔən], "seniority" [sɪiniˈɒɹəʔi].

In every Gorontalic language except Buol and Kaidipang, *k was replaced by a glottal stop, even in word-initial position, except when it followed *ŋ (*kayu → Gorontalo ayu, *konuku → olu'u).

Yanesha' has three vowel qualities (/a/, /e/, and /o/) that have phonemic contrasts between short, long, and "laryngeal" or glottalized forms.

[6] In the English dialects exhibiting pre-glottalization, the consonants in question are usually glottalized in the coda position: "what" [ˈwɒʔt], "fiction" [ˈfɪʔkʃən], "milkman" [ˈmɪɫʔkmən], "opera" [ˈɒʔpɹə].

It usually denotes syllable reduction, and can be heard before plosives: Dat düt et 'that does it, that is the case' can in its most extreme form be reduced to dʌʔˈdʏʔt.