The word _Nupa_ is without any exception applied indiscriminately by men of a particular group to women of another group, and _vice versa_, and simply implies a member of a group of possible wives or husbands, as the case may be. While this is so it must be remembered that in actual practice each individual man has one or perhaps two of these _Nupa_ women who are especially attached to himself, and live with him in his own camp. In addition to them, however, each man has certain _Nupa_ women beyond the limited number just referred to, with whom he stands in the relation of _Piraungaru_. To women who are the _Piraungaru_ of a man (the term is a reciprocal one) the latter has access under certain conditions, so that they may be considered as accessory wives. The result is that in the Urabunna tribe every woman is the especial _Nupa_ of one particular man, but at the same time he has no exclusive right to her as she is the _Piraungaru_ of certain other men who also have the right of access to her. Looked at from the point of view of the man his _Piraungaru_ are a limited number of the women who stand in the relation of _Nupa_ to him. There is no such thing as one man having the exclusive right to one woman; the elder brothers, or _Nuthie_, of the latter, in whose hands the matter lies, will give one man a preferential right, but at the same time they will give other men of the same group a secondary right to her. Individual marriage does not exist either in name or in practice in the Urabunna tribe. The initiation in regard to establishing the relationship of _Piraungaru_ between a man and a woman must be taken by the elder brothers, but the arrangement must receive the sanction of the old men of the group before it can take effect. As a matter of actual practice this relationship is usually established at times when considerable numbers of the tribe are gathered together to perform important ceremonies, and when these and other important matters which require the consideration of the old men are discussed and settled. The number of a man's _Piraungaru_ depends entirely upon the measure of his power and popularity; if he be what is called "urku," a word which implies much the same as our word "influential," he will have a considerable number; if he be insignificant or unpopular, then he will meet with scanty treatment. A woman may be _Piraungaru_ to a number of men, and as a general rule the women and men who are _Piraungaru_ to one another are to be found living grouped together. A man may always lend his wife, that is, the woman to whom he has the first right, to another man, provided always he be her _Nupa_, without the relationship of _Piraungaru_ existing between the two, but unless this relationship exists no man has any right of access to a woman.