DebuccalizationDebuccalization or deoralization is a sound change or alternation in which an oral consonant loses its original place of articulation and moves it to the glottis (usually h, ɦ, or ʔ). The pronunciation of a consonant as [h] is sometimes called aspiration, but in phonetics, aspiration is the burst of air accompanying a stop. The word comes from Latin bucca, meaning "cheek" or "mouth". Debuccalization is usually seen as a subtype of lenition, which is often defined as a sound change involving the weakening of a consonant by progressive shifts in pronunciation.
GutturalGuttural speech sounds are those with a primary place of articulation near the back of the oral cavity, where it is difficult to distinguish a sound's place of articulation and its phonation. In popular usage it is an imprecise term for sounds produced relatively far back in the vocal tract, such as German ch or the Arabic ayin, but not simple glottal sounds like h. The term 'guttural language' is used for languages that have such sounds. As a technical term used by phoneticians and phonologists, guttural has had various definitions.
Voiced glottal fricativeThe voiced glottal fricative, sometimes called breathy-voiced glottal transition, is a type of sound used in some spoken languages which patterns like a fricative or approximant consonant phonologically, but often lacks the usual phonetic characteristics of a consonant. The symbol in the International Phonetic Alphabet that represents this sound is ɦ, and the equivalent X-SAMPA symbol is h. In many languages, [ɦ] has no place or manner of articulation.
Nguni languagesThe Nguni languages are a group of closely related Bantu languages spoken in southern Africa (mainly South Africa, Zimbabwe and Kingdom of eSwatini) by the Nguni people. Nguni languages include Xhosa, Zulu, Ndebele, and Swati. The appellation "Nguni" derives from the Nguni cattle type. Ngoni (see below) is an older, or a shifted, variant. It is sometimes argued that the use of Nguni as a generic label suggests a historical monolithic unity of the people in question, where in fact the situation may have been more complex.
