More chiliadal is a term used in historical and astronomical contexts, which means "more than a thousand years". The spelling of this word can be explained using the International Phonetic Alphabet (IPA) as "mɔr tʃɪliːədəl". The "t" in "chiliadal" is silent, and the stress falls on the second syllable. The "ch" sound is pronounced as "k" and "i" as "ee". Overall, the correct pronunciation of this word can be tricky, but using the IPA transcription can help to ensure accuracy.