The term IN ESSE (really existing) is a Latin phrase meaning 'IN reality' or 'IN actuality'. It is often used to refer to the actual state of something, as opposed to its potential or ideal state. IN law, it is used to refer to the actual state of a legal entity, such as a corporation or partnership. IN philosophy, it is used to refer to the actual state of an object or concept, as opposed to its potential or ideal state.