The spelling "Selenna" is comprised of four syllables: /sɛ/ /lɛ/ /nə/. The first syllable is pronounced with an open "e" sound, like "set" or "peck." The second syllable is pronounced with a closed "e" sound, like "tell" or "sell." The third syllable features a schwa sound, which is a neutral, unstressed vowel. Finally, the fourth syllable includes a stressed "a" sound, like "apple" or "cat." Overall, the word "Selenna" is spelled phonetically and pronounced as written.