I am having difficulty wrapping my brain around estate planning. Is anyone able to help talk me through and discuss the concepts of the terms below?

1. Contingent Trust for Minor Children

2. Joint Tenancy

3. Tenancy in Common

4. Tenancy by the Entirety

5. Term Insurance

6. Intestate Succession

7. Community Property

8. Payable on Death Bank Accounts

9. Post-Mortem Tax Planning

10. Totten Trust

11. Testator\Testatrix

12. Personal Representative

13. Pretermitted Children

14. Probate

15. Undue Influence

16. Powers of Appointment