Which term signifies "to recover" from an illness or setback?

The term "recuperate" is specifically used to describe the process of recovering one's health or strength after an illness or setback. It implies a restoration or return to a state of well-being, both physically and mentally. This term is often associated with the idea of taking time to heal or regain energy, making it the most precise choice for describing recovery in this context.

While "restore" can suggest bringing something back to its original condition, it is broader and can be used in various contexts outside of health. "Consolidate" relates to the idea of combining or strengthening something, often used in financial or organizational contexts, rather than health recovery. "Allude" means to make an indirect reference, which does not connect to the concept of recovering from an illness or setback. Thus, "recuperate" is the term that most accurately conveys the idea of recovery.