What is the meaning of to restore or bring back life, health, or strength?

The phrase "to restore or bring back life, health, or strength" is most accurately captured by the term "resuscitate." This word specifically refers to the process of reviving someone from unconsciousness or apparent death, particularly in a medical context. It implies a sense of urgency and a direct action taken to revive a person, often involving techniques such as CPR.

Other terms may share some similarities with “resuscitate,” but they convey different nuances. For example, "renew" generally indicates making something fresh or new again, which does not specifically pertain to life or health. "Rejuvenate" often deals with making something or someone look or feel younger and more vital, focusing more on appearance and energy rather than life or health in the strictest terms. "Revive" does suggest bringing back a positive condition or state, but it is broader and can refer to anything from spirits to interest, and is not limited strictly to health or life restoration.

Thus, "resuscitate" is the most precise choice in the context of restoring life and health, especially when discussing vital signs or emergency medical scenarios.