The spelling of the word "Ruthi" is as it sounds - R-oo-th-ee. The IPA phonetic transcription for this word would be /ruːði/. The first syllable starts with the "R" sound, followed by a long "oo" sound as in "moon". The third syllable is pronounced with a soft "th" and carries with it the "ee" sound. This name is sometimes spelled with a "y" at the end, but the correct spelling is with an "i".