Which term is synonymous with the word 'finish' in terms of completing something?

The term "conclude" is synonymous with "finish" because both imply bringing something to an end or completing a task or process. When you conclude an activity, you effectively reach its final point, much like when you finish it. This aligns with the general understanding of completion, where an action or process is fully carried out and then brought to a close.

In contrast, the other terms represent different actions. "Commence" and "initiate" both refer to starting something rather than completing it, indicating the beginning of a process. "Discontinue" suggests the act of stopping something that was already in progress, which does not equate to completion. Therefore, "conclude" stands out as the correct choice for a term that aligns closely with the idea of finishing something.