darkness, the dark, complete absence of light; a dark place / (figuratively) public chaos, disorder in the world / an unknown or hidden place / (figuratively) jail, prison

(figuratively, possibly obsolete) psychological distress, the state of being at a loss

luminescence, emission of light

to emit light

a bug, insect, worm / a serpent, snake / (figurative): a worm (person living for only one thing) / (derogatory): a worm (despicable person) / a temperament (thought which is in the deep in mind)

insect, bug / generic name for animals

Alternative spelling of 虫除け

(electronics) light-emitting diode, LED

reptile

caterpillar