ATMEI is a six-letter word that has a unique spelling. It can be pronounced /ætméi/ with a stress on the second syllable. The first syllable is pronounced with the short vowel /æ/ sound, followed by the sound of the letter T. The second syllable is pronounced with the long vowel /eɪ/ sound, which is commonly represented by the letter A. The last four letters, /m-e-i/, are pronounced as separate sounds, with the emphasis on the /e/ sound. Despite its unusual spelling, ATMEI remains a pronounced word in the English language.