IPA: /ˌkɒnsəˈmeɪʃən/
KK: /kənˈsʌməˌneɪʃən/
The act of completing or fulfilling something, often referring to achieving a final goal or the completion of a process.
The consummation of their plans took years of hard work and dedication.
Consummation → It is formed from "con-" (meaning together) and "summare" (from Latin, meaning to sum up or complete). The word "consummation" refers to the act of bringing something to completion or fulfillment, often in a final or perfect state.
Think of bringing things 'together' ('con-') to 'complete' them ('summare') — that's why consummation means the act of completing something.