Jacent is a word that describes something that lies or is situated in a certain position. There are several synonyms for jacent that can be used interchangeably depending on the context. For example, the word prone can be used to describe something lying face down, whereas supine can be used to describe something lying face up. Other synonyms include reclining, lying, resting, and inert. These words can be used to describe anything from a person lying on a couch to a book lying on a table. When choosing the right synonym for jacent, it's important to consider the surrounding context and the intended meaning of the word.