English Phonetics: The 44 Sounds, IPA Symbols and Transcription
This page brings together, in one place, English's 44 sounds, IPA symbols, the classification of vowels-diphthongs and consonants, and the rules of stress and transcription.
- Phonetics level
- 9 min read
What Is Phonetics, and How Many Sounds Does English Have
Phonetics is the branch of linguistics that studies the production, transmission and perception of speech sounds. The smallest meaning-distinguishing sound unit of a language is called a phoneme — for example, in 'pin' and 'bin', changing just /p/ and /b/ changes the meaning. Phonemic (broad) transcription is written between two slanted lines / /, and narrow phonetic transcription in square brackets [ ]; exam questions are based on the phonemic form, written with / /.
The English alphabet has 26 letters — 5 vowel letters and 21 consonant letters — but there are 44 sounds: 20 vowel sounds and 24 consonant sounds. This exact difference is what creates the exam trap: the answer to 'how many consonant sounds are there?' is 24, not 21. English spelling and pronunciation don't correspond directly, so 'c' is sometimes pronounced /k/ (cat) and sometimes /s/ (city). This is why pronunciation is written using IPA (International Phonetic Alphabet) symbols.
Vowel sounds (20): 12 monophthongs + 8 diphthongs
| Category | Symbol | Example words |
|---|---|---|
| Short monophthongs (7) | /ɪ/ /e/ /æ/ /ʌ/ /ɒ/ /ʊ/ /ə/ | sit, bed, cat, cup, hot, put, about |
| Long monophthongs (5) | /iː/ /ɑː/ /ɔː/ /uː/ /ɜː/ | see, car, saw, soon, bird |
| Closing diphthongs — ending in /ɪ/ (3) | /eɪ/ /aɪ/ /ɔɪ/ | day, my, boy |
| Closing diphthongs — ending in /ʊ/ (2) | /əʊ/ /aʊ/ | home, now |
| Centring diphthongs — ending in /ə/ (3) | /ɪə/ /eə/ /ʊə/ | hear, hair, poor |
The mark attached to a long vowel is ː (the length mark). A monophthong is a pure vowel (the tongue stays in one position); a diphthong is a glide between two vowel sounds (the tongue moves from one vowel position toward another).
Consonant sounds (24): by manner of articulation
| Manner | Count | Sounds | Example |
|---|---|---|---|
| Plosives / Stops | 6 | /p b t d k g/ | pen, bat, ten, dog, cat, go |
| Fricatives | 9 | /f v θ ð s z ʃ ʒ h/ | fan, van, thin, this, sun, zoo, ship, measure, hat |
| Affricates | 2 | /tʃ dʒ/ | chair, judge |
| Nasals | 3 | /m n ŋ/ | man, no, sing |
| Lateral | 1 | /l/ | leg |
| Approximant / Frictionless continuant | 1 | /r/ | red |
| Semi-vowels | 2 | /j w/ | yes, wet |
6 + 9 + 2 + 3 + 1 + 1 + 2 = 24. Note: /r/ is not a fricative, and /tʃ, dʒ/ are affricates — this is exactly one common exam trap.
Place of articulation and voicing
| Place | Sounds | Memory cue |
|---|---|---|
| Bilabial | /p b m/ (and /w/ — labial-velar) | both lips |
| Labio-dental | /f v/ | upper teeth + lower lip |
| Dental | /θ ð/ | tongue tip between the teeth — thin, brother |
| Alveolar | /t d s z n l r/ (Roach classes /r/ as post-alveolar in RP) | the ridge behind the upper teeth |
| Palato-alveolar | /ʃ ʒ tʃ dʒ/ | ship, measure, chair, judge |
| Palatal | /j/ | the hard palate — yes |
| Velar | /k g ŋ/ | back of the tongue + velum — king, go, sing |
| Glottal | /h/ | the space between the vocal folds (the glottis) |
In voiced sounds, the vocal cords come together and vibrate: /b d g v ð z ʒ dʒ m n ŋ l r w j/ and all vowels. In voiceless sounds, there is no vibration: /p t k f θ s ʃ tʃ h/.
Consonant Clusters, Syllables, Stress, and Exam-Useful Rules
A consonant cluster is two or more consonant sounds coming together with no vowel in between — as in /sk/ in sky and ask, /str/ in street, /ksts/ in texts. At most 3 consonants can occur at the start of an English word (spring, street). Hindi-speaking children often pronounce 'school' as 'iskool', because the /sk/ cluster at the start of a word isn't natural in Hindi.
A syllable is a sound unit that usually has one vowel at its centre — 'cat' has 1 syllable, 'teacher' has 2, 'beautiful' has 3. Word stress: in many words, shifting the stress changes the word's part of speech — in the noun 'REcord / PREsent', the stress falls on the first syllable; in the verb 'reCORD / preSENT', on the second.
Rules for pronouncing -ed and -s: the past tense -ed is pronounced /t/ after a voiceless sound (jumped, washed), /d/ after a voiced sound (played, called), and /ɪd/ after /t/ or /d/ (wanted, needed). The plural -s is pronounced /s/ after a voiceless sound (cats), /z/ after a voiced sound (dogs), and /ɪz/ after /s z ʃ ʒ tʃ dʒ/ (buses, judges). Silent letters are also asked about: the k in knife, the p in psychology, the h in honest, the b in lamb.
Facts Worth Quick Revision
- Total sounds (RP)
- 44 = 20 vowels + 24 consonants
- Monophthongs
- 12 = 7 short + 5 long
- Diphthongs
- 8 = 5 closing + 3 centring
- Semi-vowels
- /j/, /w/
- Nasals
- /m/, /n/, /ŋ/ — /ŋ/ is also velar
- Dental sounds
- /θ/ (thin, cloth) voiceless; /ð/ (this, brother) voiced
- What makes a sound voiced
- Vibration of the vocal cords
Memory Trick / Exam Tip
Remember the counting formula: 44 = 20 + 24 → 20 = 12 + 8 → 12 = 7 + 5 → 8 = 3 + 2 + 3 (ending in /ɪ/, ending in /ʊ/, ending in /ə/). In a transcription question, first eliminate options that use ordinary English letters like c, o, sh — these don't appear among RP's 44 phonemic symbols (/cloθ/ for cloth is wrong — the correct form is /klɒθ/; 'sho' for show is wrong — the correct form is /ʃəʊ/).
Frequently Asked Questions
How many sounds does English have?+
According to British RP, there are 44 sounds: 20 vowel sounds (12 monophthongs + 8 diphthongs) and 24 consonant sounds.
Which are the semi-vowels?+
/j/ (yes) and /w/ (wet). These are produced like an open vowel sound, but they function as consonants within the word.
What is the difference between voiced and voiceless sounds?+
In a voiced sound, the vocal cords vibrate (/b, d, g, z/); in a voiceless sound, they don't (/p, t, k, s/). You can feel the difference by placing a hand on your throat while speaking.