HOME

TheInfoList



OR:

In
phonetics Phonetics is a branch of linguistics that studies how humans produce and perceive sounds, or in the case of sign languages, the equivalent aspects of sign. Linguists who specialize in studying the physical properties of speech are phoneticians. ...
and
phonology Phonology is the branch of linguistics that studies how languages or dialects systematically organize their sounds or, for sign languages, their constituent parts of signs. The term can also refer specifically to the sound or sign system of a ...
, a semivowel, glide or semiconsonant is a sound that is phonetically similar to a
vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (leng ...
sound but functions as the
syllable A syllable is a unit of organization for a sequence of speech sounds typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants). Syllables are often considered the phonological "bu ...
boundary, rather than as the
nucleus Nucleus ( : nuclei) is a Latin word for the seed inside a fruit. It most often refers to: *Atomic nucleus, the very dense central region of an atom *Cell nucleus, a central organelle of a eukaryotic cell, containing most of the cell's DNA Nucle ...
of a syllable. Examples of semivowels in English are the consonants ''y'' and ''w'', in ''yes'' and ''west'', respectively. Written in
IPA IPA commonly refers to: * India pale ale, a style of beer * International Phonetic Alphabet, a system of phonetic notation * Isopropyl alcohol, a chemical compound IPA may also refer to: Organizations International * Insolvency Practitioners ...
, ''y'' and ''w'' are near to the vowels ''ee'' and ''oo'' in ''seen'' and ''moon,'' written in
IPA IPA commonly refers to: * India pale ale, a style of beer * International Phonetic Alphabet, a system of phonetic notation * Isopropyl alcohol, a chemical compound IPA may also refer to: Organizations International * Insolvency Practitioners ...
. The term ''glide'' may alternatively refer to any type of transitional sound, not necessarily a semivowel.


Classification

Semivowels form a subclass of
approximants Approximants are speech sounds that involve the articulators approaching each other but not narrowly enough nor with enough articulatory precision to create turbulent airflow. Therefore, approximants fall between fricatives, which do produce a ...
. Although "semivowel" and "approximant" are sometimes treated as synonymous, most authors use the term "semivowel" for a more restricted set; there is no universally agreed-upon definition, and the exact details may vary from author to author. For example, do not consider the
labiodental approximant The voiced labiodental approximant is a type of consonantal sound, used in some spoken languages. It is something between an English / w/ and / v/, pronounced with the teeth and lips held in the position used to articulate the letter V. The sym ...
to be a semivowel, while proposes that it should be considered one. In the
International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic transcription, phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standa ...
, the diacritic attached to non-syllabic vowel letters is an
inverted breve Inverted breve or arch is a diacritical mark, shaped like the top half of a circle ( ̑ ), that is, like an upside-down breve (˘). It looks similar to the circumflex (ˆ), which has a sharp tip (''Â â Ê ê Î î Ô ô Û û''), whil ...
placed below the symbol representing the vowel: . When there is no room for the tack under a symbol, it may be written above, using . Before 1989, non-syllabicity was represented by , which now stands for
extra-shortness The International Phonetic Alphabet uses a breve to indicate a speech sound (usually a vowel) with extra-short duration. That is, is a very short vowel with the quality of . An example from English is the short schwa of the word ''police'' . T ...
. Additionally, there are dedicated symbols for four semivowels that correspond to the four close
cardinal vowel Cardinal vowels are a set of reference vowels used by phoneticians in describing the sounds of languages. They are classified depending on the position of the tongue relative to the roof of the mouth, how far forward or back is the highest po ...
sounds: The
pharyngeal approximant The voiced pharyngeal approximant or fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is ?\. Epiglotta ...
is also equivalent to the semivowel articulation of the
open back unrounded vowel The open back unrounded vowel, or low back unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is A. The l ...
. In addition, some authors consider the rhotic approximants , to be semivowels corresponding to
R-colored vowel In phonetics, an r-colored or rhotic vowel (also called a retroflex vowel, vocalic r, or a rhotacized vowel) is a vowel that is modified in a way that results in a lowering in frequency of the third formant. R-colored vowels can be articulate ...
s such as . As mentioned above, the
labiodental approximant The voiced labiodental approximant is a type of consonantal sound, used in some spoken languages. It is something between an English / w/ and / v/, pronounced with the teeth and lips held in the position used to articulate the letter V. The sym ...
is considered a semivowel in some treatments. An unrounded central semivowel, (or ), equivalent to , is uncommon, though rounded (or ), equivalent to , is found in
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
and
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...
.


Contrast with vowels

Semivowels, by definition, contrast with vowels by being non-syllabic. In addition, they are usually shorter than vowels. In languages as diverse as
Amharic Amharic ( or ; (Amharic: ), ', ) is an Ethiopian Semitic language, which is a subgrouping within the Semitic branch of the Afroasiatic languages. It is spoken as a first language by the Amharas, and also serves as a lingua franca for all oth ...
,
Yoruba The Yoruba people (, , ) are a West African ethnic group that mainly inhabit parts of Nigeria, Benin, and Togo. The areas of these countries primarily inhabited by Yoruba are often collectively referred to as Yorubaland. The Yoruba constitute ...
, and Zuni, semivowels are produced with a narrower constriction in the vocal tract than their corresponding vowels. Nevertheless, semivowels may be phonemically equivalent with vowels. For example, the English word ''fly'' can be considered either as an
open syllable A syllable is a unit of organization for a sequence of speech sounds typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants). Syllables are often considered the phonological "b ...
ending in a
diphthong A diphthong ( ; , ), also known as a gliding vowel, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of the speech o ...
or as a
closed syllable A syllable is a unit of organization for a sequence of speech sounds typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants). Syllables are often considered the phonological "bu ...
ending in a consonant . It is unusual for a language to contrast a semivowel and a diphthong containing an equivalent vowel, but
Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language *** Romanian dialects, variants of the Romanian language ** Romanian cuisine, tradition ...
contrasts the diphthong with , a perceptually similar approximant-vowel sequence. The diphthong is analyzed as a single segment, and the approximant-vowel sequence is analyzed as two separate segments. In addition to phonological justifications for the distinction (such as the diphthong alternating with in singular-plural pairs), there are phonetic differences between the pair: * has a greater duration than *The transition between the two elements is longer and faster for than with the former having a higher F2 onset (greater constriction of the articulators). Although a phonological parallel exists between and , the production and perception of phonetic contrasts between the two is much weaker, likely because of lower lexical load for , which is limited largely to loanwords from French, and speakers' difficulty in maintaining contrasts between two back rounded semivowels in comparison to front ones.


Contrast with fricatives/spirant approximants

According to the standard definitions, semivowels (such as ) contrast with
fricative A fricative is a consonant produced by forcing air through a narrow channel made by placing two articulators close together. These may be the lower lip against the upper teeth, in the case of ; the back of the tongue against the soft palate in t ...
s (such as ) in that fricatives produce turbulence, but semivowels do not. In discussing
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
, Martínez Celdrán suggests setting up a third category of "spirant approximant", contrasting both with semivowel approximants and with fricatives. Though the spirant approximant is more constricted (having a lower F2 amplitude), longer, and unspecified for rounding (''viuda'' 'widow' vs. ''ayuda'' 'help'), the distributional overlap is limited. The spirant approximant can only appear in the syllable onset (including word-initially, where the semivowel never appears). The two overlap in distribution after and : ''enyesar'' ('to plaster') ''aniego'' ('flood') and although there is dialectal and idiolectal variation, speakers may also exhibit other near-minimal pairs like ''abyecto'' ('abject') vs. ''abierto'' ('opened'). One potential minimal pair (depending on dialect) is ''ya visto'' ('already seen') vs. ''y ha visto'' ('and he has seen'). Again, it is not present in all dialects. Other dialects differ in either merging the two or enhancing the contrast by moving the former to another
place of articulation In articulatory phonetics, the place of articulation (also point of articulation) of a consonant is a location along the vocal tract where its production occurs. It is a point where a constriction is made between an active and a passive articula ...
(), like in
Rioplatense Spanish Rioplatense Spanish (), also known as Rioplatense Castilian, is a variety of Spanish spoken mainly in and around the Río de la Plata Basin of Argentina and Uruguay. It is also referred to as River Plate Spanish or Argentine Spanish. It is the ...
.


See also

*
Diphthong A diphthong ( ; , ), also known as a gliding vowel, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of the speech o ...
*
Hiatus (linguistics) In phonology, hiatus, diaeresis (), or dieresis describes the occurrence of two separate vowel sounds in adjacent syllables with no intervening consonant. When two vowel sounds instead occur together as part of a single syllable, the result is ...
*
List of phonetics topics A * Acoustic phonetics * Active articulator * Affricate * Airstream mechanism * Alexander John Ellis * Alexander Melville Bell * Alfred C. Gimson * Allophone * Alveolar approximant () * Alveolar click () * Alveolar consonant * Alveolar ejective ...
*
Mater lectionis ''Matres lectionis'' (from Latin "mothers of reading", singular form: ''mater lectionis'', from he, אֵם קְרִיאָה ) are consonants that are used to indicate a vowel, primarily in the writing down of Semitic languages such as Arabic, ...
*
Syllabic consonant A syllabic consonant or vocalic consonant is a consonant that forms a syllable on its own, like the ''m'', ''n'' and ''l'' in some pronunciations of the English words ''rhythm'', ''button'' and ''bottle''. To represent it, the understroke diacrit ...
*
Voiced labio-velar approximant Voice or voicing is a term used in phonetics and phonology to characterize speech sounds (usually consonants). Speech sounds can be described as either voiceless (otherwise known as ''unvoiced'') or voiced. The term, however, is used to re ...


References


Sources

* * * * * * * * *


Further reading

* {{Articulation navbox Manner of articulation Vowels Approximant consonants fi:Puolivokaali