Luncheon set is a phrase that refers to a set of dishware used for serving food during a lunch. The term "luncheon set" may seem outdated, and there are several alternative synonyms that can be used. For instance, a "lunch set" is a simple and concise way to describe the same thing. Alternatively, "lunch service" works well when referring to a more formal or upscale addition to a meal. "Lunchtime service" also conveys a similar meaning, particularly if referring to a catering service. Other synonyms can include "lunch plates" or "lunch dishes", which can be used interchangeably depending on the context.