apocope assibilation british english cluster reduction coarticulation compensatory lengthening consonant harmony consonant mutation crasis dissimilation elision english language epenthesis floating tone fortition french language haplology initial consonant voicing l-vocalization lenition linking and intrusive r mandarin chinese morpheme morphophonology nasalization palatalization paragoge phonology rhotacism sanskrit sound change syntax tone sandhi unpacking velarization vowel breaking vowel harmony