IPA: /ˌɒpəˈreɪʃən/
KK: /ɑːpəˈreɪʃən/
A process or action that is carried out to achieve a specific result, often involving a series of steps or activities.
The operation to build the new bridge will take several months to complete.
Operation → It is formed from "operari" (meaning to work) and the suffix "-tion" (indicating the action or process of). The word "operation" refers to the process of working or performing a task.
Think of 'working' ('operari') to remember that 'operation' means the process of doing something.