The word "Atelets sauce" is a challenging one to spell because it is not commonly used in everyday language. The correct pronunciation of the word is /ætəliːts sɔːs/, with the stress on the second syllable. The first syllable is pronounced as "at," followed by a weak "uh" sound, while the second syllable is pronounced as "lee." The final syllable "ts" is pronounced as "s," and the word "sauce" is pronounced as "sɔːs." To spell this word correctly, you might need some practice and familiarity with its phonetic transcription.