(swords) an inscription that includes some personal details about the swordsmith

nagamaki (long Japanese sword with lengthy handle)

(linguistics) lengthening of the vowel of a single mora to produce two morae

chief of staff

(geology) lava dome

matriarchy

high-quality charcoal made from the wood of the 姥目樫 (ubamegashi, “ubame oak, Quercus phillyreoides”); white charcoal

high-quality charcoal made from the wood of the 姥目樫 (ubamegashi, “ubame oak, Quercus phillyreoides”); white charcoal

Kyūjitai form of 参謀長 (“chief of staff”)

a polecat (weasel of the genus Mustela)