alternative/alternate solution/answer

written language, literacy language / bungo, Classical Japanese

the entrance to a profound path; in particularly an introduction to the Zen Buddhist discipline / the entrance to a Zen Buddhist temple

office work / office worker

Synonym of 一層 (issō) or 一層 (isso)

more importantly

what age, how old

how old are you?

one's own affairs, one's own business, matters of concern to oneself

depending on the situation