The spelling of the word "commance" is incorrect. The correct spelling is "commence" /kəˈmens/. The IPA phonetic transcription for this word is /kəˈmens/, where the stress is on the second syllable. "Commence" is a verb that means to begin or start something. It is important to use correct spelling in written communication to ensure clarity and professionalism. Correct spelling also demonstrates attention to detail and accuracy in one's work.