兜 - helmet, head piece

helmet (of a warrior); headpiece

spiked helmet

Tusita heaven (one of the six heavens of the desire realm); Tushita

tadpole shrimp (Triopsidae spp.); shield shrimp

tokin; small black headgear worn by yamabushi

to accept one's inferiority; to take one's hat off to someone

Tusita (heaven, pure land)

steel helmet

helmet-shaped hood

horseshoe crab

do not let your guard down after a victory; tighten the strings of your helmet after winning

large-headed midnight fish (Poromitra crassiceps)