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English definition of “stammer”

stammer

verb [I]     /ˈstæmər/
to pause a lot and repeat sounds because of a speech problem or because you are nervous: He blushed and began to stammer.Ways of speakingPhonology and phonetics
stammer noun [C] He has a stammer.
(Definition of stammer verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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