The spelling of the word "DELTAALA" can be explained through its phonetic transcription in the International Phonetic Alphabet (IPA). In IPA, "DELTA" is pronounced as "dɛltə", with the "e" sound being similar to that in "bet". "ALA" is pronounced as "ɑlə", with the "a" sound being similar to that in "father". Therefore, "DELTAALA" is spelled as "dɛltəɑlə". It is important to have a clear understanding of phonetics to accurately spell and pronounce words.