to specify /ˈspes.ɪ.faɪ/ /ˈspɛsɪfaɪ/
to define /dəˈfɑɪn/ /dɪˈfaɪn/
to stipulate /ˈstɪpjuleɪt/ /ˈstɪpjuleɪt/
to distinguish /dɪˈstɪŋgwɪʃ/ /dɪsˈtɪŋgwɪʃ/