The word "orioscope" doesn't seem to exist in English vocabulary, but it may refer to an astrology tool similar to a horoscope. Based on its probable origin from Greek or Latin, the spelling could be explained as [oɹiəskoʊp]. The first syllable "orio" could be pronounced "or-ee-oh" with a long "o" sound, while the second syllable "scope" follows typical English pronunciation, rhyming with "hope." However, without more context, it's hard to say for sure which phonemes and syllables make up the word.