chain shift

English

Noun

chain shift (plural chain shifts)

1. (linguistics, phonology) A phonological modification of a vowel system in which a change in a particular vowel causes other adjacent vowels to also change in order to avoid vowel mergers.
   • 2019, Li Huang, James Lambert, “Another Arrow for the Quiver: A New Methodology for Multilingual Researchers”, in Journal of Multilingual and Multicultural Development, →DOI, page 10:

     Many non-Antipodeans cannot readily distinguish Australian and New Zealand English, because the phonologies basically overlap with the exception of an upwards chain shift in the front vowels.