Legal fiction is a term used in law to describe a situation where a rule or decision is based on a falsehood or assumption. Some synonyms for legal fiction include legal presumption, legal hypothetical, legal assumption, legal construct and legal postulate. These terms refer to a concept where a law or rule is created based on a scenario that might not necessarily be factual, but is added to make the law more efficient. For instance, marriage is considered a legal construct where couples are given a set of rights based on their commitment to their relationship. Legal fictions can also be seen in the context of property rights, where people are given certain rights to property based on legally created or constructed concepts.