Hi...Could anyone possibly tell me what the exact differences between the two words are? Many thanks in advance.
(Not a teacher, but a student Speech and Language Therapist)
When talking about the disorder, there is no difference between these two words, and both can be used interchangably in all situations. Stammer is perhaps used more in British varieties of English, and stutter in American.
When talking about normal pauses, repititions, hesitations, breaks etc that occur in normal speech (usually as a result of excitement, nervousness etc) then I suppose 'stutter' is used more generally, whereas 'stammer' is seen as more technical.
This distinction of how technical it is doesn't really exist, as speech therapists call it 'fluency disorder' or 'dysfluency' if they are speaking about it formally, and 'stutter/stammer' elsewhere.
Research has shown that those with fluency problems (as a disorder, not as a result of excitement etc) prefer to be called 'person with a stammer/stutter' rather than 'a stutterer/stammerer'.
Many thanks indeed...it really helped...Ta!