There are various synonyms that can be used for the phrase "reheat the ashes." This wording is often associated with the act of trying to revive something that has already burned out or failed. Potential synonyms for this phrase could include "revive the embers," "resuscitate the remains," "rekindle the flame," or "reignite the fire." Each of these synonyms has a slightly different connotation but all ultimately convey the idea of trying to bring back something that has already been lost or extinguished. Whether it's a desire to reignite a relationship or a need to revive a project, finding the right synonym can help to convey the intended meaning more effectively.