last word
noun [ S ] uk/ˌlɑːst ˈwɜːd/ us/ˌlæst ˈwɝːd/
（辩论或讨论中的）最终的话，最后陈述
the final remark in an argument or discussion
You're not going, Helena, and that's my last word on the matter. 你不能去，海伦娜，这事就这么定了。
She always has to have the last word (= win the argument). 她总是必须得赢。
Idiom
be the last word in somethingidiom 最好的;最时尚（的事物）
to be the best or most modern example of something
It's a nice enough restaurant and it's very reasonably priced but it's not exactly the last word in style. 这家餐厅很漂亮，价格也很合理，但是它的风格不怎么时尚。