「幸福」最精准的英文翻译是什么？

兩種語言裡不是每個詞都可以一一對應的。幸福有時可以是 happiness，有時可以是 welfare，沒有唯一。

跟中文幸福最接近的英文词是well-being。

A general term for the condition of an individual or group, for example their social, economic, psychological, spiritual or medical state。high well-being means that, in some sense, the individual or group's experience is positive, while low well-being is associated with the negative.

中文的幸福也是这样一个通用性的，基于一个人或者群体的社交、经济、心理、精神及健康状态的综合性积极评价。