empty theory; an armchair theory

a melon fly

Synonym of 屋根裏 (yaneura, “attic”)

a place in Izumo, Shimane, famous for production of nori

(Internet slang) secret personal account (on social media, especially Twitter and Instagram (finsta), as opposed to one's openly used account)

back and front; both sides / inside out / disparity between appearance and true qualities; two-faced / ins and outs

hooray! (in the context of Russia or the Soviet Union)

to outwit; to defeat with the unexpected

bay, inlet

death rate