Quick summary
Phonology studies the sound system of a language. English spelling does not show pronunciation clearly, so linguists use phonetic symbols (IPA) for each sound. In standard British English (RP) there are 44 sounds: 24 consonants and 20 vowels. This topic covers the organs of speech and how vowels and consonants are described and classified.
Key points
- Phonetics studies speech sounds in general; phonology studies the sound system of a particular language.
- A phoneme is the smallest sound unit that changes meaning: /p/ and /b/ in pin – bin.
- English has 26 letters but 44 phonemes (RP): 24 consonants and 20 vowels (12 pure vowels + 8 diphthongs).
- Organs of speech: lungs (air supply), vocal cords in the larynx (voice), pharynx, soft palate (velum), hard palate, alveolar (teeth) ridge, teeth, lips, tongue (tip, blade, front, back) and the nasal cavity.
- Voiced sounds are made with vibrating vocal cords (/b/, /d/, /g/, /v/, /z/); voiceless sounds without vibration (/p/, /t/, /k/, /f/, /s/).
- Consonants are classified by three features: voicing, place of articulation and manner of articulation.
- Places: bilabial (/p b m/), labio-dental (/f v/), dental (/θ ð/ as in thin, this), alveolar (/t d s z n l/), post-alveolar (/r/), palato-alveolar (/ʃ ʒ tʃ dʒ/), palatal (/j/), velar (/k g ŋ/), glottal (/h/).
- Manners: plosives (/p b t d k g/), fricatives (/f v θ ð s z ʃ ʒ h/), affricates (/tʃ dʒ/ as in church, judge), nasals (/m n ŋ/), lateral (/l/), approximants/semi-vowels (/w r j/).
- Vowels are made with free flow of air; they are described by tongue height (close/open), part of the tongue raised (front/central/back) and lip position (rounded/unrounded).
- Pure vowels (monophthongs): 7 short (/ɪ e æ ʌ ɒ ʊ ə/) and 5 long (/iː ɜː ɑː ɔː uː/).
- A diphthong is a glide from one vowel to another in one syllable: /eɪ/ (day), /aɪ/ (my), /ɔɪ/ (boy), /əʊ/ (go), /aʊ/ (now), /ɪə/ (here), /eə/ (hair), /ʊə/ (poor).
- /ə/ (schwa) is the most common English vowel, found in weak syllables: about /əˈbaʊt/.
Important terms
- Phoneme – smallest meaning-changing sound.
- Minimal pair – two words differing in one sound only (ship – sheep).
- Articulator – a speech organ that shapes a sound.
- Plosive – sound made by complete closure and sudden release of air.
- Fricative – sound made by air passing through a narrow gap with friction.
- Diphthong – a vowel glide within one syllable.
- IPA – International Phonetic Alphabet.
Language study
| Sound | Description | Example |
|---|---|---|
| /p/ | voiceless bilabial plosive | pen |
| /v/ | voiced labio-dental fricative | van |
| /θ/ | voiceless dental fricative | thin |
| /ð/ | voiced dental fricative | this |
| /ʃ/ | voiceless palato-alveolar fricative | shoe |
| /tʃ/ | voiceless palato-alveolar affricate | chair |
| /ŋ/ | voiced velar nasal | sing |
| /l/ | voiced alveolar lateral | leg |
Common errors of Indian speakers: /v/ and /w/ confused (vest – west), /z/ said as /dʒ/ (zero), /ʃ/ and /s/ mixed, and pure vowels used for diphthongs (/goː/ for go).
5 important questions
Q1. What is a phoneme? Give an example.
A phoneme is the smallest unit of sound that changes meaning. In "cat" and "bat", /k/ and /b/ are different phonemes.
Q2. Describe the sound /b/ by its three features.
/b/ is a voiced bilabial plosive.
Q3. Describe the organs of speech and their role.
- Lungs push air out (the source of energy).
- Vocal cords in the larynx vibrate for voiced sounds.
- Soft palate: raised for oral sounds, lowered for nasal sounds.
- Tongue: the most active articulator; touches teeth, ridge or palate.
- Lips, teeth, alveolar ridge and hard palate act as places of contact.
- Nasal cavity gives resonance to /m n ŋ/.
Q4. How are English consonants classified? Explain with examples.
- By voicing: voiced (/d/) vs voiceless (/t/).
- By place: bilabial (/m/), labio-dental (/f/), dental (/θ/), alveolar (/s/), palato-alveolar (/ʃ/), velar (/k/), glottal (/h/).
- By manner: plosive (/p/), fricative (/s/), affricate (/tʃ/), nasal (/n/), lateral (/l/), approximant (/w/).
- A full description gives all three: /g/ = voiced velar plosive.
Q5. What are diphthongs? List the diphthongs of English with examples.
- A diphthong is a glide from one vowel position to another within a syllable.
- English (RP) has 8: /eɪ/ day, /aɪ/ time, /ɔɪ/ boy, /əʊ/ go, /aʊ/ house, /ɪə/ near, /eə/ chair, /ʊə/ tour.
- Closing diphthongs glide towards /ɪ/ or /ʊ/; centring diphthongs glide towards /ə/.
Exam tip
For "describe the sound" questions, always write in the order voicing – place – manner (e.g. voiceless alveolar fricative for /s/). Learn the consonant chart; it answers half the phonology questions.