schism - division of a group into opposing factions
Tontine -
an annuity shared by subscribers to a loan or common fund, the shares increasing as subscribers die until the last survivor enjoys the whole income
a scheme for life insurance in which the beneficiaries are those who survive and maintain a policy to the end of a given period
Vehemence - the display of strong feeling; passion.
XO - Executive Officer (military), second in command
Zoomer - is a nickname referring to members of Generation Z, those born in the late 90s and early 2000s
Abject - Wretched, completely without pride, miserable
behoovebe appropriate or necessary
dearthan insufficient quantity or number
eschew - avoid and stay away from deliberately
Fenestron - is a protected tail rotor of a helicopter operating like a ducted fan