to replace /rɪˈpleɪs/ /rɪˈpleɪs/
to exchange /ɪksˈtʃeɪndʒ/ /ɪksˈtʃeɪndʒ/
to substitute /ˈsʌb.stəˌtuːt/ /ˈsʌbstɪtjuːt/