[d]→[ʔ]Certainty: 4/5Commonality: 2/5

Voiced alveolar plosive to Glottal stop

The shift from the voiced dental stop [d] to a glottal stop [ʔ] is a form of debuccalization. While less common than the [t] to [ʔ] shift, it occurs in rapid or informal speech in specific English dialects, particularly in word-final positions or before other consonants.

Phonetic Effects

Debuccalization, Glottalization

Language Examples

English (Cockney/Estuary) Germanic

good night [d]→[ɡʊʔ naɪʔ]— The final voiced stop is replaced by a glottal catch in connected speech.

Related Transformations

Reverse Related: T-Glottalization

More Germanic Shifts

[a] → [ã] — Assimilatory Nasalization [a] → [∅] — Elision [a] → [ʔ] — Glottalization [a] → [ə] — Vowel Reduction [æ] → [ɛ] — Vowel Raising

Sources & References

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