The phrase "finished off" often connotes a finality or completion, but there are plenty of synonyms that can be used in its place depending on the specific context. Some alternatives might include "concluded," "wrapped up," "brought to a close," "ended," or "terminated." Similarly, if the emphasis is on a sense of destruction or elimination, other options like "wiped out," "obliterated," "annihilated," or "eradicated" may be more appropriate. Depending on the tone and intent behind the phrasing, there are numerous words and phrases that could be used instead of "finished off" to achieve a more precise or nuanced meaning.