American English Phonetics

Another American English Faculty Project

The assimilation of GA /θ,ð/ to /s,z/ is characteristic of informal speech:

  1. Dental /θ/ becomes alveolar /s/ before /s,z/: both sides, both zoos
  2. both sides

  3. Dental /ð/ becomes alveolar /z/ before or after /s,z/: Who’s that? What’s the score? How’s that?
  4. who’s that