There are several synonyms for the phrase "family lives," which can be used in various contexts depending on the intended meaning. One alternative phrase is "family existence," which can refer to the overall state of a family's existence or the factors that contribute to their daily routine and way of life. Other synonyms for "family lives" include "family affairs," "domestic life," and "household management," which relate more specifically to the day-to-day operations of a family and their living arrangements. Overall, these synonyms provide different shades of meaning to help convey a fuller picture of what it means to be part of a family and the various factors that shape their way of life.