Living on can be interpreted in a variety of ways. When describing someone who is barely making ends meet financially, other synonyms might include "existing on," "surviving off of," or "making do with." When discussing someone's continual residence in a specific location, alternatives to "living on" could include "dwelling in," "residing at," or "inhabiting." In terms of persistent behavior or lifestyle, synonyms for "living on" may include "relying upon," "depending on," or "persisting with." It's important to choose the appropriate synonym based on the context of the sentence and the intended meaning.