The word Tretis is spelled as /ˈtrɛtɪs/. The IPA phonetic transcription helps to break down how each sound is pronounced in this word. The /t/ sound is pronounced at the beginning followed by the /r/ sound which is a consonant blend. The /ɛ/ sound is pronounced next, followed by the /t/ sound again. Finally, the word ends with the /ɪs/ sound, represented by the letters "is". When spelled out phonetically, Tretis can be easily pronounced correctly.