dying
moribund
on one's last legs
have one foot in the grave
deathward
on one's deathbed
with one's last breath
knocking on heaven's door
ND
thanatogenetic
deathwards
deathly
article of death
pre-dead
thanatopsis
pay the debt of nature
cash in one's chips
doom
cock one's toes
end
pass the river
status zero
kick
meet one's end
go home
big sleep
go to sleep
draw one's last breath
loss of life
quell
quietus
suck the kumara
peg out
last roundup
go out
go the way of all the earth
go
turn to dust
querk
turn up one's toes
slip one's wind
join the choir invisible
thanatoid
bite the dust
depart
cash in
curtain
flatline
check-out time
meet one's doom
hand in one's checks
cross the Styx
keel over
pass away
fatality
pass in one's checks
kick the bucket
hand in one's dinner pail
expire
cop one's whack
buy it
expiry
knock on heaven's door
mortality
bite the biscuit
croak
pass
pop one's clogs
bite the big one
succumb
thanatosis
sputter out
demise
toddle off
cark it
fall off one's perch
take a dirt nap
peg it
go belly-up
drop off the hooks
at death's door
pass on
check out
have had it
deathbound
transition
return to dust
conk out
do for
snuff it
mortally
thanatognomonic
close one's eyes for the last time
deathfulness
macabre
deathful