XYZ
X Table - (a designation sometimes used to refer to an experimental table or a draft of a table that has not been developed to a point of satisfaction or for actual use in rating)
XCU - explosion, collapse, and underground exclusion (inherent danger resulting from certain construction procedures that are excluded from general business liability policies)
XS - excess policy (in the liability area, a policy issued to provide limits in excess of an underlying liability policy)
YRCT - Yearly Renewable Convertible Term (renewable term life insurance which can be renewed on an annual basis - coverage is renewable annually at the option of the insured, who is not required to take a medical examination, with the additional option of conversion to permanent life insurance)
YRT - Yearly Renewable Term (renewable term life insurance - coverage that is renewable at the option of the insured, who is not required to take a medical examination)
YTM - Yield to Maturity (sum total of the annual effective rate of return earned by an owner of a bond if that bond is held until its maturity date)
Z Table - (a mortality table illustrating the ultimate experience on insured lives computed according to the experienced mortality on life policies issued by major companies from 1925 to 1934)