The spelling of the word "DEXMES" can be explained using the International Phonetic Alphabet (IPA). The letter "D" is pronounced as /d/, the letter "E" is pronounced as /ɛ/, the letter "X" is pronounced as /ks/, the letter "M" is pronounced as /m/, and the letter "S" is pronounced as /s/. Putting them altogether, "DEXMES" is pronounced as /dɛksmɛs/. This transcription helps in accurately pronouncing the word and understanding its spelling.