The spelling of the word "Neneca" is tricky due to the use of silent letters. The correct pronunciation is /nɪˈnɛkə/, with stress on the second syllable. The silent "e" at the end serves to indicate that the second syllable should have a long "e" sound. Additionally, the second "n" is there to indicate that the stress falls on the second syllable. It's important to take note of these nuances in spelling and pronunciation to ensure clear communication.