Vowels: Articulation, Description, and Classification

Comprehensive vocabulary flashcards covering the articulation, classification, IPA transcription, diphthongs, and dialectal shifts of English vowels.

Vowel

A speech sound formed without any significant constriction in the vocal tract; it serves as the nucleus of a syllable, involves free airflow through the oral cavity, and is always voiced.

Oral Vowel

A vowel produced with the velum raised, preventing airflow through the nasal cavity and directing it entirely through the oral cavity.

Nasalized Vowel

A vowel produced with the velum lowered, allowing sound and air to resonate through the nasal cavity, often occurring when adjacent to a nasal sound.

Tongue Height

A primary dimension of vowel articulation describing the vertical elevation of the tongue, categorized into high/close, high-mid, mid, low-mid, and low/open.

Tongue Advancement

A primary dimension of vowel articulation describing the horizontal positioning or retraction of the tongue, classified as front, central, or back.

Lip Rounding

The articulatory parameter defined by the presence (rounded) or absence (unrounded) of lip protrusion during vowel production.

Tense Vowels

Vowels that are longer in duration and capable of occurring at the end of an open syllable (e.g., in the sentence "We may view Ma Shaw's fur coat").

Lax Vowels

Vowels that are shorter in duration and can only occur within a closed syllable (e.g., in the sentence "Big Ben had cooked the butter").

/i/ (Lower-case i / long-e)

A high, front, unrounded, tense vowel articulated with a close, elevated jaw position (found in words like "we", "beak", and "machine").

/ɪ/ (Small capital I)

A high/high-mid, front, unrounded, lax vowel produced with a close, mid-open jaw position (found in words like "sit", "drink", and "rich").

/e/ (Lower-case e)

A high-mid, front, unrounded, tense vowel produced with a mid jaw position and a high-front offglide (found in words like "lay", "eight", and "decade").

/ɛ/ (Epsilon)

A low-mid, front, unrounded, lax vowel produced with a mid jaw position (found in words like "bet", "cent", and "debt").

/æ/ (Ash)

A low, front, unrounded, lax vowel produced with an open jaw position (found in words like "ash", "cash", and "mat").

/u/ (Lower-case u)

A high, back, rounded, tense vowel articulated with a close jaw position (found in words like "true", "group", and "accuse").

/ʊ/ (Upsilon / capped-u)

A high, back, rounded, lax vowel articulated with a close jaw position (found in words like "put", "could", and "cookie").

/o/ (Lower-case o)

A high-mid, back, rounded, tense vowel produced with a mid-to-close jaw position and a high-back offglide (found in words like "know", "coal", and "sew").

/ɔ/ (Open o)

A low-mid, back, rounded, tense vowel produced with a mid-to-close jaw position (found in words like "sought", "coffee", and "walk").

/ɑ/ (Script a)

A low, back, unrounded, tense vowel articulated with an open jaw position (found in words like "plot", "bazaar", and "father").

/ʌ/ (Wedge / turned V)

A low-mid, back-central, unrounded, lax vowel produced with a relatively open jaw that occurs only in stressed syllables (e.g., "bud", "flood").

/ə/ (Schwa)

A mid, central, unrounded, lax vowel produced with a mid jaw position that occurs only in unstressed syllables (e.g., "again", "telephone").

/ɝ/ (Right-hooked reversed epsilon)

A mid, central, rounded, tense r-colored vowel produced with a mid-open jaw that occurs in stressed syllables (e.g., "her", "fur", "world").

/ɚ/ (Schwar)

A mid, central, rounded, lax r-colored vowel produced with a mid-open jaw that occurs in unstressed syllables (e.g., "butter", "labor", "martyr").

Monophthong

A pure vowel characterized by a single, unchanging articulatory position and acoustic quality.

Diphthong

A speech sound made of two vowels produced with a smooth, continuous glide from one vowel position to another within a single syllable.

Onglide

The initial articulatory position and vowel sound with which a diphthong begins.

Offglide

The second or terminating articulatory position toward which the tongue glides during diphthong production.

Non-Phonemic Diphthongs

Diphthongs (/eɪ/ and /oʊ/) whose alternation with their corresponding monophthongs (/e/ and /o/) does not change the linguistic meaning of a word.

Phonemic Diphthongs

Diphthongs (/aɪ/, /aʊ/, and /ɔɪ/) that function as independent phonemes and cannot be reduced to a monophthong without changing word meaning.

r-Colored Vowels

Rhotic vowels formed by the combination of a vowel sound and /r/, including /ɝ/, /ɚ/, /ɪr/, /ɛr/, /ʊr/, /ɔr/, and /ɑr/.

Diphthongization

The phonological process in which a single monophthong vowel is modified and pronounced as two vowel qualities (e.g., /tu/ becoming /tiu/).

Monophthongization

The phonological process in which a diphthong is simplified and pronounced as a single pure vowel (e.g., tired /tɑɪrd/ becoming /tɑrd/).

Back Upglide Shift

A chain shift found in Southern dialects where the back vowel /ɔ/ shifts to /aʊ/, and the diphthong /aʊ/ subsequently shifts to /æʊ/.