A document incorporating the instructions (will) of one person, which deals with the disposal of his/her estate at his/her death.
A single will is a document incorporating the instructions of one person, which deals with the disposal of his/her estate at his/her death.
A joint will is a document incorporating the instructions of two persons, which deals with the disposal of their estates at the death of either or both of them. At the death of the first person, it is advisable that the surviving spouse should renew their will as soon as possible.
Should you wish to avoid the red tape, we would advise you to draw up two single wills right from the start.