顕生代: the Phanerozoic eon

題知らず: a written header of a waka poem stating that its theme or occasion is unknown / 題知らず: the waka poem itself with the unknown theme or occasion

大膳: grey plover; Short for 大膳職.

ちゃぶ台: chabudai, a short-legged table

大文字: the Chinese character 大

題目: title of a book or other work; theme, topic; an specific chanting in Nichiren Buddhism.

断頭台: guillotine

step stool / (figuratively) stepping stone (person)

(Internet slang) Alternative form of だいすき (daisuki)

大二十面半十二面体: great icosihemidodecahedron