Definition: A conjoint, or a conjoint party, is a person who has an agreement with another to form part of a group. It's often used in legal or social contexts to indicate that two individuals are bound by a contract or agreement and cannot be separated from one another. For example, in a marriage, a conjoint could be the partner who agrees to stay together until they have children. In the context of a conjoint party, the term "conjoint" can also refer to a