言語学: linguistics - study of language.

語源学: etymology (study of the historical development of languages, particularly of individual words)

a pipe or tube, such as that made of bamboo, wood, metal, or rubber / a shuttle for weaving with a loom (from the way the earliest shuttles were made from bamboo tubes)

tube; pipe; duct; tract

A long-necked fretted round-bodied plucked lute of Chinese origin, used in Japan since at least the Nara period.

intense cold

Kyūjitai form of 漢学: Sinology

Sinology

Synonym of 科学博物館 (kagaku hakubutsu kan, “science museum; museum of science”)

the London Underground