An obstruent is a speech sound such as [k], [d͡ʒ], or [f] that is formed by obstructing airflow. Obstruents contrast with sonorants, which have no such obstruction and so resonate. All obstruents are consonants, but sonorants include both vowels and consonants.
|Manners of articulation|
Obstruents are subdivided into plosives (oral stops), such as [p, t, k, b, d, ɡ], with complete occlusion of the vocal tract, often followed by a release burst; fricatives, such as [f, s, ʃ, x, v, z, ʒ, ɣ], with limited closure, not stopping airflow but making it turbulent; and affricates, which begin with complete occlusion but then release into a fricative-like release, such as [t͡ʃ] and [d͡ʒ].
Obstruents are prototypically voiceless, but voiced obstruents are common. This contrasts with sonorants, which are prototypically voiced and only rarely voiceless.
- Gussenhoven, Carlos; Haike, Jacobs. Understanding Phonology, Fourth Edition, Routledge, 2017
- Zsiga, Elizabeth. The Sounds of Language: An Introduction to Phonetics and Phonology. Wiley-Blackwell, 2013.
- Ian Maddieson (1984). Patterns of Sounds. Cambridge University Press. ISBN 0-521-26536-3.
- Ladefoged, Peter; Maddieson, Ian (1996). The Sounds of the World's Languages. Oxford: Blackwell. ISBN 978-0-631-19815-4.