(This is a provisional posting!)
Glottalization is the ADDITION of the glottal
stop before (or simultaneously with) a frortis plosive ptk or the fortis
affricate tsh. Wells also calls it Glottal Reinforcement, which is a better
name. It occurs in word-final positions and in syllable-final clusters where ptk
is followed by another consonant.
Examples: match mæ?tsh, rapture ræ?ptsh@, foot-rest fU?trest, text te?kst, clockwork klo?kw@:k, what wo?t, etc.
Wells says "the precise details .... are intricate and variable" (p. 260) which means that this is another messy variable (in spite of the mathematical-like formulae we use to expresss linguistic variables we must never forget that language is not mathematics: language always bends.
Glottaling is the REPLACEMENT of t (more
rarely p and k) by a glottal stop. If you like it is the next stage to
glottalization, with the orignal stop disappearing. And so as far as t is
concerned it happens in the same places: foot-rest fU?rest, bottle bo?.l, meet
me mi:?mi, what wo?, that ðæ?.
It also occurs intervocalically following a stressed syllable (where glottalization is less likely to occur): Peter, meeting, waiter, fatter, Britain (pi:?@ mi:?IN wei?@ fæ?@ bri?@n)
Glottaling of p and k (supper, ticket) is not so common, occuring sporadically in Cockney and other SE urban dialects.
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