Translation guide
The Imperial Diet was the national legislature of the Empire of Japan (1889–1947). In Japanese, it is referred to as 帝国議会 (ていこくぎかい). When discussing the historical institution, use this term. For modern contexts, use 国会 (こっかい) for the National Diet of Japan.
Referring to the national assembly of the Empire of Japan (1889–1947).
Standard term for the Imperial Diet. Use when discussing the historical institution.
帝国議会は1890年に開設された。
The Imperial Diet was established in 1890.
Referring to Japan's current national legislature (post-1947).
The National Diet of Japan, the current legislature. Use this for modern contexts.
国会は国権の最高機関である。
The Diet is the highest organ of state power.
Referring to imperial diets in other historical contexts (e.g., Holy Roman Empire).
Can be used for other imperial diets, but context is needed. Often specified with country name.
神聖ローマ帝国の帝国議会
the Imperial Diet of the Holy Roman Empire
Using 帝国議会 to refer to the current Japanese legislature is incorrect. Always use 国会 for the post-war Diet.
When discussing the Imperial Diet, it may be helpful to mention the Meiji Constitution (大日本帝国憲法) or the year 1890 to clarify the historical period.