The word "Loobies" is spelled with the letter combination "oo" which represents a long vowel sound. The IPA phonetic transcription for this word is /ˈluːbiz/. The initial "L" sound is followed by a long "oo" sound represented by the letter "o" twice. The ending "ies" is spelled with the letters "i" and "e" to represent the plural form. Overall, the spelling of "Loobies" accurately represents the pronunciation of the word.