A joint tenant is a person who holds land in an undivided share with others and is the most common form of ownership for married couples. There are 4 unities:

If one tenant dies that interest vests in the surviving joint tenant(s). This is a right of survivorship (jus accrescendii). Compare with tenancy in common.

The owner of a unit in a unit title scheme has an interest in the common property as tenant in common. The share of the interest is the same as that of the unit’s unit entitlement.