A group of onmitsu, government-employed undercover agents, established by the 8th Tokugawa shogun, Tokugawa Yoshimune (1684–1751). Sometimes described as ninja.

deathwatch beetle

(2channel slang) repeating something for the n-th time

eleven o'clock

twelve o'clock; noon; midnight

Synonym of グリニッジ標準時

ushi no toki mairi, a traditional Japanese practice where a person visits (参(まい)り (mairi)) a shrine at approximately 2 AM in the morning (丑(うし)の時(とき) (ushi no toki)) in order to nail a straw effigy of a person (藁人形(わらにんぎょう) (waraningyō)) to a tree and wish for that person's death

Synonym of 黄昏 (tasogare, “dusk; twilight”) / Synonym of 黄昏時 (tasogaredoki, “dusk; twilight”)

(linguistics) diachronic

(linguistics) synchronic