The holding of two or more benefices or livings concurrently by one member of the clergy. Also: an instance of this practice; a benefice or living…

The practice or custom of having more than one spouse at the same time. Contrasted with monogamy.

= plurality, n. (in various senses).

The system or practice of two or more offices or positions, esp. ecclesiastical offices, being held at the same time by one person.