The spelling of the word "OOSAUMA" may appear confusing at first glance, but it can be deciphered using the International Phonetic Alphabet (IPA). The word is pronounced /uːsɔːmə/ - note the long "oo" sound, the "au" diphthong, and the unstressed "a" at the end. The first "o" represents the /uː/ sound, while the "au" represents the /ɔː/ sound. The "s" and "m" are pronounced normally, and the final "a" is pronounced as the "schwa" sound /ə/.