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English definition of “consonant”

consonant

noun [C]     /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 . → Compare vowelPhonology and phonetics
(Definition of consonant noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of consonant

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