There are numerous synonyms for the term "older person," which can be used to describe an individual who has lived longer than an arbitrary standard of age. Some of the more commonly used synonyms include "senior," "elderly," "aged," "mature," "experienced," and "veteran," among others. Each of these terms has its own connotations and implications, depending on the context and the perspective of the person using them. Some synonyms may be more respectful or deferential, while others may be more casual or neutral. Ultimately, the choice of synonyms depends on the speaker's intent and audience, and should be chosen carefully to avoid offense or misunderstanding.