電: lightning, a lightning bolt/lightning strike / 稲妻: lightning, a lightning bolt/strike

因果: fateful, unlucky

印画: photographic print / 因果: cause and effect; karma; fate / 院画: a picture painted in a Chinese style / 陰画: negative photograph

印画紙: photopaper

(dialectal) Nonstandard form of 担う (ninau /になう/, “carry on one's shoulder, to bear”).

(mathematics) quod erat demonstrandum (that which was to be proved)

(Internet slang) a dead fad; out of fashion; no longer trendy

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)