Alternative spelling of 物知り: a person with broad knowledge, a knowledgeable person

(history) Assyria

Kunashir (an island in Russia)

silica

work done for free, unpaid work, uncompensated work / work done in vain, work with no favorable end result

to work for free, to work without pay or other compensation / to work in vain, to work with no favorable end result

(archaic, grammar) any word that declines or conjugates / (archaic, grammar) more specifically, a verb

臀鰭: anal fin

尻臀: buttock

running at a moderate pace