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English definition of “consonant”

consonant

noun [C] uk   /ˈkɒn.sə.nənt/ us    /ˈkɑːn-/
B1 one of the speech sounds or letters of the alphabet that is not a vowel. Consonants are pronounced by stopping the air from flowing easily through the mouth, especially by closing the lips or touching the teeth with the tongue.
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Phonology and phonetics
(Definition of consonant from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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