The word "Trigintals" refers to a mathematical term that means "groups of 30." The spelling of this word can be explained using the International Phonetic Alphabet (IPA). The first syllable, "tri," is pronounced as "tray" using the IPA symbol [treɪ]. The second syllable, "gin," is pronounced as "jen" using the IPA symbol [dʒɛn]. The final syllable, "tals," is pronounced as "tuhls" using the IPA symbol [tʌls]. Therefore, "Trigintals" is pronounced as [treɪdʒɛntʌlz].