ˌway of ˈlife noun (plural ways of life) [countable]

1. the behaviour, habits, customs etc that are typical of a particular society or person:
The tribe’s traditional way of life is under threat.
the American/British etc way of life

2. a job or interest that is so important that it affects everything you do:
For Mark, travelling has become a way of life.

[TahlilGaran] Dictionary of Contemporary English ▲

a way of life
accepted as a regular part of something.
Unfortunately, arguments and anger have been a way of life at the art center for several years.

Etymology: based on the literal meaning of a way of life (= how a person lives)

[TahlilGaran] English Idioms Dictionary ▲