Manner of Articulation

Manner of articulation describes how the airstream is modified as it passes through the vocal tract to produce a consonant. While place of articulation specifies where the obstruction occurs, manner specifies what kind of obstruction it is — complete closure, narrow constriction, or something in between. Together with place and voicing, manner completes the three-parameter system for classifying consonants (Roach, 2009; Ladefoged & Johnson, 2015).

Manners of Articulation in English

Plosives (stops) — Complete closure of the vocal tract followed by a sudden release burst. /p b t d k ɡ/ — pat, bat, tin, din, cut, gut. English has six plosive phonemes arranged in three voiceless/voiced pairs at bilabial, alveolar, and velar places. Voiceless plosives are aspirated [pʰ tʰ kʰ] in stressed syllable-initial position (an important allophonic variation). Plosives are the most common consonant type across the world's languages.

Fricatives — Narrow constriction forces air through a tight gap, creating audible turbulence (friction). /f v θ ð s z ʃ ʒ h/ — fan, van, thin, then, sip, zip, ship, measure, hat. English has nine fricatives — more than most languages. The dental fricatives /θ ð/ are cross-linguistically rare. /ʒ/ has very limited distribution (mainly medial position: vision, pleasure).

Affricates — Begin as a plosive and release into a fricative at the same place of articulation. /tʃ dʒ/ — church, judge. Functionally single phonemes, not consonant clusters — evidenced by the fact that "choose" /tʃuːz/ patterns as a single onset, not a cluster like "true" /truː/. Some analyses treat them as sequences; the standard ELT position treats them as unit phonemes.

Nasals — Complete oral closure (like a plosive) but with the velum lowered so air escapes through the nose. /m n ŋ/ — map, nap, sing. Each nasal shares a place of articulation with a plosive pair: /m/ is bilabial (like /p b/), /n/ is alveolar (like /t d/), /ŋ/ is velar (like /k ɡ/). The velar nasal /ŋ/ never occurs word-initially in English.

Lateral approximant — The tongue tip contacts the alveolar ridge, but air flows around one or both sides of the tongue. /l/ — let, pull. English /l/ has two major allophones: "clear" [l] before vowels (light) and "dark" [ɫ] before consonants and word-finally (full, help). This allophonic split is a frequent source of difficulty for learners — many L1s have only one variant.

Approximants — Articulators approach each other but not close enough to produce friction. /r w j/ — red, wet, yet. The English /r/ is typically a post-alveolar approximant [ɹ] (not a trill or tap as in many other languages). /w/ is a labial-velar approximant (two simultaneous places). /j/ is a palatal approximant. Approximants are sometimes called "semi-vowels" (for /w j/) because they pattern phonetically like vowels but function as consonants.

The Sonority Hierarchy

Manner of articulation relates directly to sonority — the relative loudness/openness of a sound. From least to most sonorous: plosives < fricatives < nasals < laterals < approximants < vowels. This hierarchy governs which consonant combinations are possible in English syllable structure (Clements, 1990). Syllables rise in sonority toward the nucleus (vowel) and fall away from it.

Why It Matters for ELT

Intelligibility priorities. Manner errors often cause more communication breakdown than place errors. Substituting a fricative for a plosive (or vice versa) changes the acoustic character of a sound more dramatically than shifting place while keeping manner constant. A learner who says [s] for /θ/ (manner preserved, place shifted) is more intelligible than one who says [t] for /θ/ (manner changed).

Teaching consonant clusters. English allows complex consonant clusters (e.g., /str/ in "string", /ŋkθs/ in "lengths") that many L1s forbid. Clusters follow sonority sequencing: in onsets, sonority rises toward the vowel; in codas, it falls. Understanding manner helps teachers predict which clusters will cause epenthesis (vowel insertion) or simplification.

Aspiration and the plosive system. The aspiration of voiceless plosives /p t k/ in syllable-initial stressed position is a manner-level allophonic rule. Learners whose L1 lacks aspiration (e.g., Romance language speakers) may produce unaspirated voiceless plosives that English listeners perceive as the voiced counterpart: [p] sounds like /b/ to English ears. This is a manner-level teaching point with direct intelligibility consequences.

Connected speech. Several connected speech processes operate on manner: elision frequently targets plosives in clusters ("next day" → /neks deɪ/); nasals trigger assimilation of place in preceding plosives ("input" → /ɪmpʊt/).

Key References

• Roach, P. (2009). English Phonetics and Phonology (4th ed.). Cambridge University Press. — Chapters 2-6 on English consonant system.
• Kelly, G. (2000). How to Teach Pronunciation. Longman. — Accessible descriptions of each manner category for teachers.
• Ladefoged, P. & Johnson, K. (2015). A Course in Phonetics (7th ed.). Cengage. — Detailed articulatory and acoustic description of manners.
• Celce-Murcia, M., Brinton, D., & Goodwin, J. (2010). Teaching Pronunciation (2nd ed.). Cambridge University Press. — Manner-based teaching sequences.
• Clements, G.N. (1990). The role of the sonority cycle in core syllabification. In J. Kingston & M.E. Beckman (Eds.), Papers in Laboratory Phonology I (pp. 283-333). Cambridge University Press.