The phrase "were alive" can be replaced by a number of synonyms, each conveying its own subtle meaning. The term "survived" implies that the circumstances were difficult and potentially life-threatening, but the individual or group managed to persevere. "Endured" connotes a similar struggle, but with the added implication of a sustained effort over a longer period of time. "Thrived" suggests a positive outcome, with the individual or group not only surviving but also thriving in their environment. "Flourished" conveys a sense of growth and success that results from being alive in a particular setting. Each of these synonyms offers a unique perspective on the experience of being alive.