一智, 和知, 和智: a male given name

豊千: a male given name

日課: daily routine, daily work

地下核実験: underground nuclear test

(Internet slang, humorous) 3 things that should be avoided in order to avoid infection during the 2020 coronavirus pandemic: 集 (shū, “assembly”), 近 (kin, “close (in distance)”) + 閉 (hei, “closed [spaces]”).

groundwater pollution, groundwater contamination

near, close

underground nuclear test

(obsolete) Synonym of コートジボワール共和国 (Kōto Jibowāru Kyōwakoku, “Republic of Côte d'Ivoire”)

木炭紙: charcoal paper