The voiceless alveolar, dental and postalveolar plosives (or stops) are types of

consonant In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract, except for the h sound, which is pronounced without any stricture in the vocal tract. Examples are and pronou ...

al sounds used in almost all spoken

language Language is a structured system of communication that consists of grammar and vocabulary. It is the primary means by which humans convey meaning, both in spoken and signed language, signed forms, and may also be conveyed through writing syste ...

s. The symbol in the

International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standard written representation ...

that represents voiceless dental,

alveolar Alveolus (; pl. alveoli, adj. alveolar) is a general anatomical term for a concave cavity or pit. Uses in anatomy and zoology * Pulmonary alveolus, an air sac in the lungs ** Alveolar cell or pneumocyte ** Alveolar duct ** Alveolar macrophage * M ...

, and

postalveolar Postalveolar (post-alveolar) consonants are consonants articulated with the tongue near or touching the ''back'' of the alveolar ridge. Articulation is farther back in the mouth than the alveolar consonants, which are at the ridge itself, but n ...

plosives In phonetics, a plosive, also known as an occlusive or simply a stop, is a pulmonic consonant in which the vocal tract is blocked so that all airflow ceases. The occlusion may be made with the tongue tip or blade (, ), tongue body (, ), lip ...

is , and the equivalent

X-SAMPA The Extended Speech Assessment Methods Phonetic Alphabet (X-SAMPA) is a variant of SAMPA developed in 1995 by John C. Wells, professor of phonetics at University College London. It is designed to unify the individual language SAMPA alphabets, and ...

symbol is t. The voiceless dental plosive can be distinguished with the underbridge diacritic, and the postalveolar with a retraction line, , and the

extIPA The Extensions to the International Phonetic Alphabet for Disordered Speech, commonly abbreviated extIPA , are a set of letters and diacritics devised by the International Clinical Phonetics and Linguistics Association to augment the Internati ...

has a double underline diacritic which can be used to explicitly specify an alveolar pronunciation, . The sound is a very common sound cross-linguistically. Most languages have at least a plain , and some distinguish more than one variety. Some languages without a are colloquial Samoan (which also lacks an ), Abau, and Nǁng of South Africa. There are only a few languages which distinguish dental and alveolar stops, Kota, Toda,

Venda Venda ( ), officially the Republic of Venda (; ), was a Bantustan in northern South Africa. It was fairly close to the South African border with Zimbabwe to the north, while, to the south and east, it shared a long border with another black hom ...

and many

Australian Aboriginal languages The Indigenous languages of Australia number in the hundreds, the precise number being quite uncertain, although there is a range of estimates from a minimum of around 250 (using the technical definition of 'language' as non-mutually intellig ...

being a few of them; certain varieties of

Hiberno-English Hiberno-English or Irish English (IrE), also formerly sometimes called Anglo-Irish, is the set of dialects of English native to the island of Ireland. In both the Republic of Ireland and Northern Ireland, English is the first language in e ...

also distinguish them (with being the local realisation of the Standard English phoneme , represented by ⟨th⟩).

Features

Here are features of the voiceless alveolar stop: * There are three specific variants of : ** Dental, which means it is articulated with either the tip or the blade of the tongue at the upper

teeth A tooth (: teeth) is a hard, calcified structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores and omnivores, also use teeth to help with capturing or wounding prey, tear ...

, termed respectively '' apical'' and ''

laminal A laminal consonant is a phone (speech sound) produced by obstructing the air passage with the blade of the tongue, the flat top front surface just behind the tip of the tongue, in contact with upper lip, teeth, alveolar ridge, to possibly, ...

''. ** Denti-alveolar, which means it is articulated with the blade of the tongue at the

alveolar ridge The alveolar process () is the portion of bone containing the tooth sockets on the jaw bones (in humans, the maxilla and the mandible). The alveolar process is covered by gums within the mouth, terminating roughly along the line of the mandib ...

, and the tip of the tongue behind upper teeth. **

Alveolar Alveolus (; pl. alveoli, adj. alveolar) is a general anatomical term for a concave cavity or pit. Uses in anatomy and zoology * Pulmonary alveolus, an air sac in the lungs ** Alveolar cell or pneumocyte ** Alveolar duct ** Alveolar macrophage * M ...

, which means it is articulated with either the tip or the blade of the tongue at the alveolar ridge, termed respectively ''apical'' and ''laminal''.

Varieties

Occurrence

Dental or denti-alveolar

Alveolar

Postalveolar

Variable

Notes

References

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

External links

* {{DEFAULTSORT:Voiceless Alveolar stop Alveolar consonants Pulmonic consonants Voiceless oral consonants Central consonants