noun, noun, used as a suffix
work; business; company; agency
Refers to one's profession, trade, or the organization one works for. Often used as a suffix in compound nouns like サービス業 (service industry) or 建設業 (construction business).
彼は建設業に従事している。
He is engaged in the construction business.
この地域ではサービス業が盛んだ。
The service industry is thriving in this area.
noun, noun, used as a suffix
Used in Buddhist contexts to refer to religious practice or study, such as 仏道修行 (Buddhist training). Not used for general academic study.
彼は仏道の業に励んでいる。
He devotes himself to Buddhist practice.