Definition of aikuchi in US English:

aikuchi

noun

  • A dagger or short sword manufactured without a hilt-guard, so that the hilt fits flush with the scabbard.

Origin

Late 19th century. From Japanese aikuchi, lit. ‘fitting the mouth’, so called on account of the snug fit between the hilt-collar and the opening of the scabbard in the absence of a guard.

Pronunciation

aikuchi

/ʌɪˈkʊtʃi/