本質: essence, nature (intrinsic quality)

book about a certain topic

絵本: picture book

本店: main or flagship shop, store, or branch; this shop or branch

手本: model, example

(Kansai, more emphatic) Alternative form of あほ (aho, “idiot”)

本線: main or trunk line, such as a railroad line or electrical line

blades of grass and tree trunks / falcons

Alternative form of 元

long cylindrical things such as glasses of drink, pairs of jeans, pens or trains and buses / films or TV shows / home runs or goals / rounds of a match in boxing, wrestling or judo