This is a trust where the beneficiaries and/or their entitlements to the trust fund are not fixed, but are instead determined by the criteria set out in the trust instrument by the settlor
An executor (or executrix in the case of a female) is the person (or people) who have been appointed in a will to deal with the testator's affairs after their death
This is a document setting out in advance what types of medical treatment the maker of the will does or does not wish to receive in specific circumstances should he or she be incapable of giving or refusing consent