The word "age" can have a variety of synonyms depending on the context in which it is used. When referring to a person's age, one could use words such as "years," "time of life," "stage of life," or "generation." To describe something as old or ancient, synonyms for age could include "antiquated," "vintage," "dated," or "historic." In terms of time, synonyms for age could include "duration," "length of time," or "span." When discussing the age of a document or piece of literature, possible synonyms could include "era," "epoch," or "period." Ultimately, the choice of synonym for "age" depends on the intended meaning and context of the word.