The spelling of the word "Susee" is not a commonly known one. However, the IPA phonetic transcription of the word can help explain its spelling. The word "Susee" can be transcribed as /suːsiː/. The first two letters "su" represent the sound of "s" followed by "u". The next two letters, "se", are transcribed using the "s" followed by the "e" sound, which makes the "s" sound like an "ss" sound. Finally, the last two letters "ee" represent the sound of "i". Thus, the spelling of "Susee" can be deduced from its pronunciation.