The word "completion" in English means: The act of finishing something., The state of being finished or complete., A thing that completes something; something that finishes or perfects something else..
The phonetic transcription of "completion" is /kəmˈpliːʃən/ in British English and /kəmˈpliːʃən/ in American English. Click the 🔊 button to hear both pronunciations.