(someone's) means of support

Translations
средства (чьего-либо) существования
His job is his only means of support.
Его работа — это его единственные средства существования.
Definitions
The way in which someone earns a living or obtains the resources necessary to live, such as a job, business, or other source of income.
Words
mean

noun
среднее
support

noun
поддержка
means

noun
средство