- live by something
- live by something1. to live near something. •
We live by a lovely park that is filled with children in the summer.
•I would love to live by the sea.
2. to survive by doing or using something in particular. (See also live by one's live on borrowed time wits.) •She lives by her own skill and hard work.
•We live by the skills that we have—and hard work, of course.
Dictionary of American idioms. 2013.