sword for an evil purpose / assassin's dagger

murderous device / malicious means

dokujinto / herbal restorative / decocted stimulant

successful play / successful kyogen / hit / hit play

of one-hundred-percent sure / sure-fire way / well-assured method

Antitrust Act / Antimonopoly Act

Russo-German nonaggression pact

leave *someone in full charge of [a matter]

single system

self-supporting farmer