The word "Synthee" is spelled with the letters s-y-n-t-h-e-e. The first "e" is repeated for emphasis, creating a unique and uncommon spelling. In IPA phonetic transcription, the word would be pronounced as /ˈsɪnθi/. The "s" sounds like the "s" in "sit", the "y" sounds like the "ee" in "me", the "n" sounds like the "n" in "no", the "th" sounds like the "th" in "think", and the "i" sounds like the "i" in "sit".