Z
apodosis
catastrophe
ceasing
cessation
coda
conclusion
consummation
crack of doom
culmination
curtain
curtains
death
decease
denouement
destination
destiny
doom
effect
end
end point
ending
envoi
epilogue
eschatology
expiration
fate
final solution
final twitch
final words
finale
finality
finis
finish
goal
last
last breath
last gasp
last things
last trumpet
last words
latter end
omega
payoff
period
peroration
quietus
resolution
resting place
stoppage
izard
alphabetic character
letter
letter of the alphabet
blizzard
gizzard
lizard
wizard