vowel shift
systematic change in the pronunciation of the vowel sounds of a language
Great Vowel Shift in English
pronunciation change in English between 1350 and 1700
Canadian raising
allophonic rule in Canadian and other English dialects that changes /aɪ/ and /aʊ/
Canadian Shift
vowel chain shift in Canadian English involving the lowering and backing of the front vowels
Scottish vowel length rule
description of how vowel length in Scots and Scottish English is conditioned by the phonetic environment of the target vowel
drawl
perceived longer vowel sounds and diphthongs in speech
Canaanite shift
shift of /ā/ to /ō/ in Hebrew and closely-related languages
Mary-marry-merry merger
vowel shift from Received Pronunciation to American English in words with pronunciations like "air"