Oneirocritic is a rarely used term that refers to a person who interprets dreams. However, there are several synonyms that can be used instead of oneirocritic. For instance, one can use the term "dream analyst" to describe a person who ascertains the meaning of a dream. Another term that can be used to refer to a oneirocritic is "dream interpreter." The term "dream decipherer" also offers an alternative to oneirocritic. Additionally, one can use the term "oneiromancer" to describe a person who divines the meaning of dreams. Overall, these synonyms can be used interchangeably to refer to a person who interprets the meaning of dreams.