刀

razor burn; razor rash; razor cut

one-knife carving

Law

Act for Controlling the Possession of Firearms or Swords and Other Such Weapons

striking with the back of the sword

a non-samurai being granted the privilege of wearing a sword (during the Edo period)

minor official

Idiomatic expression; Non-standard variant of 伝家の宝刀

one's last resort; trump card

Idiomatic expression

the world is at peace; bows in bags and swords in sheaths

Hanlon's razor ("Never attribute to malice that which can be adequately explained by stupidity")

sword with a round pommel

Historical term

person in charge of beheading (concluding a seppuku)

Historical term

executioner; person in charge of beheading

Sumo

rikishi carrying a sword who follows the yokozuna to the ring during his ring-entering ceremony

one who sharpens razors

two swords

one long sword

taste for both wines and sweets; having a liking for both alcoholic beverages and sweet things

using a meat ax when a knife would suffice; taking a sledgehammer to crack a nut; using a grand-scale measure (a massive instrument) to deal with an insignificant problem

archery, horsemanship, spearsmanship, and swordsmanship; martial arts in general

date shell (Lithophaga curta); date mussel

long sword with birds' heads carved on the pommel

snake mackerel (Gempylus serpens)

From a rakugo story; used ironically to poke fun at someone who makes an ignorant statement with confidence

Pacific saury is only good if it's from Meguro

second slash; second cut

Historical term

bronze currency of ancient China (both spade-shaped coins and knife coins)

Historical term

Jurchen pirate tribe who invaded Tsushima in 1019