the Mesolithic

small mercy (from some misfortune); silver lining of a dark cloud; consolation in sadness; blessing in disguise

(mathematics) geometric mean, specifically, if the variables a, b, c satisfy the relation a:b=b:c, then b is the 幾何中項 of a and c.

a metatarsal bone

the Second Sino-Japanese War

Kyūjitai form of 営業中 (“open”)

(archaic) milk / (archaic) breast

to differ, to vary / to be incorrect, to make a mistake / to run counter to, to go against, to defy

content / characteristic / natural appearance / confirm / mortgage

spider