all you can eat

modern times, variously described as encompassing the Renaissance, the Age of Discovery, the Reformation and the rise of modern capitalism; or from the Meiji Restoration to the end of the Pacific War, which is then followed by 現代 (gendai)

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

(construction, architecture) The large, central pillar that holds up a traditional Japanese house. / The breadwinner of a household or organization.

aorta

a private university

algebraic equation (mathematical equation)

catastrophe, disaster

huge, gigantic, enormous, massive / swollen and large

one's masterpiece, one's representative work