Русско-англо-русский юридический словарь

A side hustle is any type of employment undertaken in addition to one’s full-time job. A side hustle is generally freelance or piecework in nature, providing a supplemental income. Side hustles are often things a person is passionate about, rather day a typical day job worked in order to make ends meet. (Wonolo)

Thousands of Miami Valley residents work two or more jobs to make ends meet, but women are more likely than men to work multiple jobs, and they are almost twice as likely to have only part-time jobs. (Dayton Daily News)

advance. An amount of money paid before it is due or for work only partly completed.

the author was paid a £250,000 advance. I've just got a good advance on a book, my first income for three months. He has even taken advances on his salary, and loans just to make ends meet. (English Oxford Living Dictionaries)