Pronunciation: [sˈa͡ɪt sˈiːz] (IPA) 
"Sight sees" is not a correct spelling. The correct spelling is "sightsees," with a connected double "s" in the middle. The IPA phonetic transcription of this word is /ˈsaɪt.siːz/. The first syllable "sight" is pronounced with the long "i" sound /aɪ/. The second syllable "sees" is pronounced with the long "e" sound /iː/ and the connected double "s" indicates that it is a compound word consisting of "sight" and "sees."
The word "sightsees" is a combination of two words: "sight" and "sees".
The word "sight" originates from Old English "siht", which means "act of seeing". It evolved from Proto-Germanic "sihtiz", and ultimately traces back to the Proto-Indo-European root "*sekw", meaning "to see" or "to look".
The word "sees" is the third-person singular form of the verb "see", which comes from Old English "seon". "Seon" has its roots in Proto-Germanic "sehwanan" and the Proto-Indo-European root "*sekw-", the same root mentioned earlier.
When combined, "sightsees" is a verb used to describe the act of seeing or visiting places of interest as a tourist or for leisure.
