(history, government) the Six Guards since the early Heian period (左近衛府 (Sakon'efu, “Left Bodyguard”), 右近衛府 (Ukon'efu, “Right Bodyguard”), 左衛門府 (Saemonfu, “Left Gate Guard”), 右衛門府 (Uemonfu, “Right Gate Guard”), 左兵衛府 (Sahyōefu, “Left Soldier Guard”) and 右兵衛府 (Uhyōefu, “Right Soldier Guard”))

extravehicular activity

engage in an extravehicular activity

Kyūjitai form of 外国人: a foreigner, a person from a foreign country; an alien, a foreign national

Outer Mongolia

coitus interruptus

Kyūjitai form of 外来語, a foreign loanword transliterated into Japanese, usually written in katakana.

kanji not approved for regular use

Kanji characters outside of the jōyō kanji and jinmeiyō kanji lists. For example, 攪.

Kyūjitai form of 外来種: introduced species