IPA: /ˌdɪs.kənˈtɪn.jəˌʃən/
KK: /dɪsˌkɒn.tɪˈnueɪ.ʃən/
The act of stopping something or bringing it to an end.
The discontinuation of the product surprised many customers.
Discontinuation → It is formed from "dis-" (meaning apart) and "continuare" (meaning to continue). The word describes the act of stopping or ceasing something that was previously ongoing, effectively meaning to take apart the continuity.
Think of something being 'taken apart' ('dis-') from its 'continuation' — that's why discontinuation means stopping something that was ongoing.