農学: agronomy / 能楽: a Noh play

疫学: epidemiology

政治学: political science

生理学: physiology

室内楽: chamber music

学年: year in school, grade in school

貨幣学: numismatics

tongue / reed of a woodwind (musical instrument) / clapper of a bell

(poetry) a pillow word, an epithet, specifically a poetic device where a certain introductory phrase is commonly used to allude to something else, traditionally used in 和歌 (waka, “traditional Japanese poetry”)

a cant or secret language of ladies-in-waiting in the imperial court, arising during the Muromachi period and later spreading to the general population / a word originally belonging to this cant