also: サイド・ビジネス
side business; side job
A job or small business done in addition to one's main work. Compared with 副業, this katakana word can sound a little more business-like or entrepreneurial.
会社員をしながらサイドビジネスを始めた。
I started a side business while working as a company employee.
She sells accessories as a side business on weekends.
While working as a company employee, he started a side business.
I earn about 100,000 yen a month through my side business.
I do photography as a side business.