The 24 Consonant Sounds in English Explained (WAEC/ JAMB Oral English)
English has 24 consonant sounds, each produced by partially or fully blocking airflow in the mouth or throat in a specific way.
This topic is a core part of the Oral English component tested in WAEC, NECO, and GCE, usually through questions asking students to identify words that share the same consonant sound, or to distinguish between similar-sounding consonants. This lesson goes through all 24 sounds with clear example words.
Quick takeaways
- English has 24 distinct consonant sounds, each represented by its own symbol in the International Phonetic Alphabet (IPA).
- Consonant sounds are produced by fully or partially blocking airflow using the lips, teeth, tongue, or throat.
- Consonants are classified as either voiced (vocal cords vibrate) or voiceless (vocal cords don’t vibrate), which is a common exam distinction.
- Some English letters can represent more than one consonant sound depending on the word (e.g., the letter “c” in “cat” vs “city”).
- WAEC/NECO Oral English questions often ask you to identify which word has a different consonant sound from the others in a group – practice listening for the sound, not just the spelling.
What is a consonant sound?
A consonant sound is a speech sound produced by fully or partially obstructing the flow of air through the mouth or throat, using the lips, tongue, teeth, or vocal cords. This is different from vowel sounds, which are produced with a relatively open, unobstructed vocal tract.
English has 24 consonant sounds in total, each with its own symbol in the International Phonetic Alphabet (IPA), used to represent sounds precisely regardless of how a word is spelled.
What is the difference between voiced and voiceless consonants?
Consonant sounds are classified as either voiced or voiceless, depending on whether the vocal cords vibrate when the sound is produced:
- Voiced consonants – the vocal cords vibrate (e.g., /b/ as in “bat,” /d/ as in “dog,” /z/ as in “zoo”)
- Voiceless consonants – the vocal cords do not vibrate (e.g., /p/ as in “pat,” /t/ as in “top,” /s/ as in “sun”)
A useful way to check: place your fingers on your throat while making the sound – if you feel a vibration, it’s voiced; if not, it’s voiceless. Many consonant pairs differ only in this feature (e.g., /p/ and /b/ are produced the same way except for voicing).
Why can the same letter represent different consonant sounds?
English spelling doesn’t always match pronunciation directly, which means a single letter can represent different sounds depending on the word. For example, the letter “c” represents the sound /k/ in “cat” but the sound /s/ in “city.” This is exactly why Oral English is tested separately from written grammar – it requires you to focus on how a word actually sounds, not just how it’s spelled, and it’s the source of many commonly tested “odd one out” questions.
How do you prepare for consonant sound questions in WAEC/NECO?
Most Oral English questions on consonants ask you to identify a word with a different sound from the others in a group, or to match words that share the same consonant sound. Effective preparation involves:
- Learning the IPA symbol and example word for each of the 24 consonant sounds
- Practicing with word groups where spelling looks similar but sounds differ (e.g., words ending in “-ed” can sound like /t/, /d/, or /ɪd/ depending on the word)
- Saying words aloud rather than just reading them silently, since Oral English tests actual pronunciation, not spelling
Common mistakes students make with consonant sounds
- Assuming words that are spelled similarly must sound the same
- Confusing voiced and voiceless pairs, such as /p/ and /b/, or /s/ and /z/
- Relying on Nigerian English pronunciation patterns that may differ slightly from standard exam expectations for certain sounds
- Skipping practice with the IPA symbols, making it harder to follow pronunciation guides in textbooks and past questions
Frequently asked questions
Q: How many consonant sounds are there in the English language? There are 24 consonant sounds in English, each represented by its own distinct symbol in the International Phonetic Alphabet.
Q: What is the difference between a voiced and a voiceless consonant? A voiced consonant is produced with vibration of the vocal cords, such as /b/ or /z/, while a voiceless consonant is produced without vocal cord vibration, such as /p/ or /s/.
Q: Why does the letter “c” sometimes sound different in different words? Because English spelling doesn’t always directly correspond to pronunciation, so a single letter like “c” can represent different sounds, such as /k/ in “cat” and /s/ in “city,” depending on the word.
Q: Is Oral English tested in JAMB? No, Oral English, including consonant and vowel sounds, is tested in WAEC, NECO, and GCE, but it is not included in JAMB’s UTME syllabus.
This is one topic from our full WAEC & NECO English Language course — see everything covered →
