The word "kellis" is spelled with a hard "k" sound at the beginning, followed by a long "e" sound and then a double "l", making the "l" sound longer. The word ends with an "is" sound, pronounced as "iss". This phonetic transcription can be written as /ˈkɛlɪs/. The word "kellis" does not appear to have a defined meaning in the English language, but it could potentially be used as a surname or as a made-up word in creative writing.