Kigo, a word associated with a particular season in traditional Japanese poetry.

(Japanese folklore) Shapeshifting monster, 妖怪 (yōkai), which for a ruse takes the form of either a helpless baby or tiny old man, crying near woodland trails and crushes passersby who stop to help as it transforms to devour them.

(set theory) intersection

mnemonics, the art or practice of improving one’s memory

heroic

(slang) monster cock

the language of prostitutes during the Edo period

very end; far end

caviar

(Internet slang) pl0x, plz (please)