(euphemistic) actual sex acts / (euphemistic) unsimulated sex

testing, testing

(Buddhism) head temple of a sect / (organizational) headquarters

translationese, the result of a translation that overly resembles the syntax and idioms of the original language.

bilingual book; a book with translations printed side by side or on opposite pages

Japanophile

(capitalism) circulating capital

Tekihon-ism; confusing other people in order to conceal one's real motive

flip, turn over / wave, flutter / a change of mind

Sometimes used as the character for "han" (doubles) in Japanese mahjong, in place of 翻.