Kyūjitai form of 家宝 ("heirloom").

reading a book together as a family

crest (often of a family)

Japanese unit of weight (1/1000 of a kan)

astronomy

astronomy

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

unthinkable, out of the question

Desolated is a door when no guests come knocking. Lit. To hang a net on the door and use it to catch sparrows (as no guests ever come).

practical question (problem)